Radeon hd 7990: VisionTek AMD Radeon 7990 6GB DDR5 PCI Express Graphics Card (900627) : Electronics

AMD Radeon HD 7990 Review

The new AMD Radeon HD 7990 dual-GPU graphics card is meant to challenge Nvidia at the top of the consumer graphics stack. The HD 7990 combines two HD 7970 GPUs on a single PCB and includes a huge number of bundled games. It’s competitive—but exactly how competitive depends on which game you check and whether or not the title is optimized to run on more than one graphics card.

In one sense, the Radeon HD 7990 is actually a bit late to the party. Analysts expected the card to launch a year ago, after Nvidia debuted its own dual-graphics solution, the Nvidia GeForce GTX 690. AMD allowed board manufacturers like PowerColor to launch unofficial Radeon 7990s based on custom design work, but elected not to put an official stamp of approval on its own card. The Sunnyvale, CA-based company remained mum on the topic of whether it would introduce a new dual-core GPU, even after Nvidia launched the $1,000 Nvidia GeForce GTX Titan($4,627.35 at Amazon)(Opens in a new window) in late February. As of today, all that changes—the new, official Radeon HD 7990 is meant to compete with both the GTX 690 and GTX Titan at the $1,000 price point.

Design and Features
Spec-wise, the Radeon HD 7990 is a pair of Radeon 7970 GPUs (codename: Tahiti) on the same slab of silicon. Each GPU contains 2,048 stream processors, 6GB of GDDR5, and a 384-bit memory bus. Each GPU is clocked at 1,000MHz, with a 1,375MHz memory clock. The two GPUs communicate directly with each other via a 48-lane PCI-E 3.0 bridge chip developed by PLX.

There are several differences between the new official 7990 and the older PowerColor custom GPU. Clock speeds on the official card are slightly higher (1GHz compared with 925MHz) and the AMD card draws significantly less power. The old PowerColor solution required three 8-pin PCI-Express power connectors and used a three-slot GPU cooling solution. The Radeon HD 7990 has a two-slot cooler and requires just two 8-pin PCIe power connectors. Finally, there’s the question of graphics ports. PowerColor’s custom HD 7990 offered two DVI ports, two mini DisplayPorts, and an HDMI port. The Radeon HD 7990 has a single DVI port and 4x mini DisplayPorts. These differences imply that AMD spent some time optimizing the Radeon 7990’s twin GPUs for lower power consumption before it deployed the cards.

Similar Products

4.5

Outstanding

Nvidia GeForce GTX Titan

Software is the other area where AMD is pulling out all the stops. Anyone who buys a Radeon HD 7990 will also receive the following games as part of the company’s «Never Settle» bundled game promotion:

• Far Cry 3: Blood Dragon (upcoming)
• Crysis 3
• BioShock Infinite
• Tomb Raider
• Far Cry 3
• Hitman: Absolution
• Sleeping Dogs
• Deus Ex: Human Revolution

These aren’t just titles someone in marketing plucked out of a hat; they’re some of the best games released in the past 12 months. BioShock Infinite($7. 49 at Humble Bundle)(Opens in a new window) is the top-rated game on Metacritic, while Tomb Raider is in third place. Anyone looking to drop $1,000 on a new graphics card has likely played some of these games already, but the bundle is worth roughly $300 (as priced at Amazon). The Radeon HD 7990 wins the all-time «bundled goodies» competition, hands down.

Before we discuss the Radeon HD 7990’s performance, we need to talk about its competition. AMD’s new dual-GPU is facing down two separate products from Nvidia—the single-GPU supercomputing-derived GTX Titan, with 2,668 CUDA cores and 6GB of GDDR5, and the dual-GPU GTX 690. Like the HD 7990, the GTX 690 sports a pair of GK104 graphics processors on a single PCB connected by a high-speed link chip. Each Nvidia GPU has its own pool of GDDR5 (2GB each). The GTX Titan, of course, is its own animal. It’s a single GPU with 75% more cores than a single GK104 GPU and a 6GB frame buffer.

When we reviewed the Nvidia GTX Titan, we noted that the card wouldn’t automatically be faster than the Nvidia GTX 690 in every instance. There are times when a pair of graphics cards working in SLI is going to be faster than a single card. There are also times when the reverse is true. Splitting a graphics workload into two sections, offloading those sections, and then recombining the output take a certain amount of time.

Testing and Performance
Our performance comparisons were done using an Intel Core i7-3770K Ivy Bridge CPU, 16GB of DDR3-1600, a 256GB OCZ Vector SSD, and a 27-inch Asus VG278HE monitor at 1,920-by-1,080. The Nvidia GTX 690’s performance was simulated using a pair of GTX 680s in SLI; tests have demonstrated that the performance delta between the two configurations is essentially nil. All of our tests were run at 1,920-by-1,080 with maximum details set. Multi-sampled antialiasing was activated when available and turned up to 8x if possible.

In the Civilization V Late Game View benchmark test, the Radeon HD 7990 turned in a score of 93 frames per second (fps), compared with the Nvidia GTX 680($1,122. 59 at Amazon)(Opens in a new window) SLI’s 98fps and the 102.6fps for the Nvidia GTX Titan. The critically acclaimed BioShock Infinite was a win for the Radeon HD 7990—it hit 108fps, compared with 107 for the Nvidia GTX 680 SLI and 88 for the Nvidia GTX Titan. In Hitman: Absolution, the Radeon HD 7990 had a commanding lead at 85fps, compared with 49fps for the Nvidia GTX Titan and 58fps for the pair of Nvidia GTX 680s in SLI mode.

There were, however, cases when performance slipped the other way. In Diablo III, the Radeon HD 7990 hit 139fps, which wasn’t as good as the Nvidia GTX Titan (221fps), but was better compared with 136fps for the Nvidia GTX 680s in SLI. Multi-GPU support is apparently the culprit—Diablo 3 takes minimal advantage of the second GPU. Batman: Arkham City($16.95 at Walmart)(Opens in a new window) is another game where the Nvidia GTX Titan won by a wide margin: 112fps versus 94.8fps for the Nvidia GTX 680 SLI and 73fps for the Radeon HD 7990. Later investigation proved that Batman: Arkham City doesn’t support CrossFire, which leaves the game running on just one GPU.

Which card is «best,» in other words, depends on where you look. Historically, Nvidia has done a better job than AMD at providing timely driver updates with multi-GPU support for the latest games, but that trend may no longer be accurate. Since AMD first launched the «Never Settle» program last fall, the company has been putting a great deal more effort into driver updates, multi-GPU support, and sponsoring high-profile games.

The Nvidia GeForce GTX Titan is still the fastest single-GPU card on the market, but if you’re looking for a dual-GPU solution, the AMD Radeon HD 7990 is a worthy competitor. Its overall performance is comparable to the Nvidia GTX 690 or (or a pair of Nvidia GTX 680’s in SLI), and it comes with a massive game bundle. If you’ve been out of the game market for several years and are looking to jump back in with a full suite of titles, the Radeon HD 7990 is a great way to do it.

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AMD Radeon HD 7990 vs Nvidia GeForce GTX 1060: What is the difference?

49points

AMD Radeon HD 7990

59points

Nvidia GeForce GTX 1060

Comparison winner

vs

54 facts in comparison

AMD Radeon HD 7990

Nvidia GeForce GTX 1060

Why is AMD Radeon HD 7990 better than Nvidia GeForce GTX 1060?

  • 3.93 TFLOPS higher floating-point performance?
    7.78 TFLOPSvs3.85 TFLOPS
  • 23.5 GTexels/s higher texture rate?
    144 GTexels/svs120. 5 GTexels/s
  • 383.8GB/s more memory bandwidth?
    576GB/svs192.2GB/s
  • 576bit wider memory bus width?
    768bitvs192bit
  • 2816 more shading units?
    4096vs1280
  • 176 more texture mapping units (TMUs)?
    256vs80
  • 16 more render output units (ROPs)?
    64vs48
  • Has Double Precision Floating Point (DPFP)?

Why is Nvidia GeForce GTX 1060 better than AMD Radeon HD 7990?

  • 556MHz faster GPU clock speed?
    1506MHzvs950MHz
  • 11.5 GPixel/s higher pixel rate?
    72.3 GPixel/svs60.8 GPixel/s
  • 255W lower TDP?
    120Wvs375W
  • 502MHz faster memory clock speed?
    2002MHzvs1500MHz
  • 2008MHz higher effective memory clock speed?
    8008MHzvs6000MHz
  • 0.9 newer version of DirectX?
    12vs11.1
  • 708MHz faster GPU turbo speed?
    1708MHzvs1000MHz
  • Supports ray tracing?

Which are the most popular comparisons?

AMD Radeon HD 7990

vs

Gigabyte GeForce GTX 1060

Nvidia GeForce GTX 1060

vs

AMD Radeon RX 580

AMD Radeon HD 7990

vs

AMD Radeon R9 290

Nvidia GeForce GTX 1060

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Nvidia GeForce RTX 3050 Laptop

AMD Radeon HD 7990

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Nvidia GeForce GTX 1080

Nvidia GeForce GTX 1060

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Nvidia GeForce GTX 1650

AMD Radeon HD 7990

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MSI GeForce GTX 1050 Ti

Nvidia GeForce GTX 1060

vs

Nvidia GeForce RTX 3050 Ti Laptop

AMD Radeon HD 7990

vs

AMD Radeon HD 6990

Nvidia GeForce GTX 1060

vs

Manli GeForce GTX 1650

AMD Radeon HD 7990

vs

AMD Radeon Pro WX 2100

Nvidia GeForce GTX 1060

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AMD Radeon RX 570

AMD Radeon HD 7990

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AMD Radeon RX Vega 8

Nvidia GeForce GTX 1060

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Nvidia GeForce RTX 2060

AMD Radeon HD 7990

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Asus ROG Strix GeForce GTX 1050 Ti

Nvidia GeForce GTX 1060

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Nvidia GeForce GTX 1660 Ti

AMD Radeon HD 7990

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MSI GeForce GTX 960 Gaming 100ME

Nvidia GeForce GTX 1060

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AMD Radeon RX 550

Nvidia GeForce GTX 1060

vs

MSI GeForce GTX 1050 Ti

Price comparison

User reviews

Overall Rating

AMD Radeon HD 7990

0 User reviews

AMD Radeon HD 7990

0. 0/10

0 User reviews

Nvidia GeForce GTX 1060

2 User reviews

Nvidia GeForce GTX 1060

6.0/10

2 User reviews

Features

Value for money

No reviews yet

 

6.0/10

2 votes

Gaming

No reviews yet

 

5.5/10

2 votes

Performance

No reviews yet

 

5.5/10

2 votes

Fan noise

No reviews yet

 

5.5/10

2 votes

Reliability

No reviews yet

 

5.5/10

2 votes

Performance

1.GPU clock speed

950MHz

1506MHz

The graphics processing unit (GPU) has a higher clock speed.

2.GPU turbo

1000MHz

1708MHz

When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.

3.pixel rate

60. 8 GPixel/s

72.3 GPixel/s

The number of pixels that can be rendered to the screen every second.

4.floating-point performance

7.78 TFLOPS

3.85 TFLOPS

Floating-point performance is a measurement of the raw processing power of the GPU.

5.texture rate

144 GTexels/s

120.5 GTexels/s

The number of textured pixels that can be rendered to the screen every second.

6.GPU memory speed

1500MHz

2002MHz

The memory clock speed is one aspect that determines the memory bandwidth.

7.shading units

Shading units (or stream processors) are small processors within the graphics card that are responsible for processing different aspects of the image.

8.texture mapping units (TMUs)

TMUs take textures and map them to the geometry of a 3D scene. More TMUs will typically mean that texture information is processed faster.

9.render output units (ROPs)

The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.

Memory

1.effective memory speed

6000MHz

8008MHz

The effective memory clock speed is calculated from the size and data rate of the memory. Higher clock speeds can give increased performance in games and other apps.

2.maximum memory bandwidth

576GB/s

192.2GB/s

This is the maximum rate that data can be read from or stored into memory.

3.VRAM

VRAM (video RAM) is the dedicated memory of a graphics card. More VRAM generally allows you to run games at higher settings, especially for things like texture resolution.

4.memory bus width

768bit

192bit

A wider bus width means that it can carry more data per cycle. It is an important factor of memory performance, and therefore the general performance of the graphics card.

5.version of GDDR memory

Newer versions of GDDR memory offer improvements such as higher transfer rates that give increased performance.

6.Supports ECC memory

✖AMD Radeon HD 7990

✖Nvidia GeForce GTX 1060

Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.

Features

1.DirectX version

DirectX is used in games, with newer versions supporting better graphics.

2.OpenGL version

OpenGL is used in games, with newer versions supporting better graphics.

3.OpenCL version

Some apps use OpenCL to apply the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.

4.Supports multi-display technology

✔AMD Radeon HD 7990

✔Nvidia GeForce GTX 1060

The graphics card supports multi-display technology. This allows you to configure multiple monitors in order to create a more immersive gaming experience, such as having a wider field of view.

5.load GPU temperature

A lower load temperature means that the card produces less heat and its cooling system performs better.

6.supports ray tracing

✖AMD Radeon HD 7990

✔Nvidia GeForce GTX 1060

Ray tracing is an advanced light rendering technique that provides more realistic lighting, shadows, and reflections in games.

7.Supports 3D

✔AMD Radeon HD 7990

✔Nvidia GeForce GTX 1060

Allows you to view in 3D (if you have a 3D display and glasses).

8. supports DLSS

✖AMD Radeon HD 7990

✖Nvidia GeForce GTX 1060

DLSS (Deep Learning Super Sampling) is an upscaling technology powered by AI. It allows the graphics card to render games at a lower resolution and upscale them to a higher resolution with near-native visual quality and increased performance. DLSS is only available on select games.

9.PassMark (G3D) result

This benchmark measures the graphics performance of a video card. Source: PassMark.

Ports

1.has an HDMI output

✔AMD Radeon HD 7990

✔Nvidia GeForce GTX 1060

Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.

2.HDMI ports

Unknown. Help us by suggesting a value. (AMD Radeon HD 7990)

More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.

3. HDMI version

Unknown. Help us by suggesting a value. (AMD Radeon HD 7990)

HDMI 2.0

Newer versions of HDMI support higher bandwidth, which allows for higher resolutions and frame rates.

4.DisplayPort outputs

Allows you to connect to a display using DisplayPort.

5.DVI outputs

Allows you to connect to a display using DVI.

6.mini DisplayPort outputs

Allows you to connect to a display using mini-DisplayPort.

Price comparison

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Which are the best graphics cards?

AMD Radeon HD 7990 6GB review

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Our Verdict

A big, quick, expensive card. But its also a slightly flaky, unreliable one thats arrived rather late to the ultra-enthusiast graphics party.

To me it almost feels like the graphics card market simply doesn’t know what to do with itself this year. In the lull before the next-gen consoles start making demands upon hardware once more we’re at a stage where the graphics power we’ve got is arguably good enough. And so no-one wants to release their next-gen GPU architectures right now. When you consider the pixel-pushing grunt that’s sitting in today’s £200 cards it’s no wonder neither GPU manufacturer is in a rush. Instead, AMD and Nvidia are busy launching ultra high-end graphics cards based on their existing tech — and this homebrew HD 7990 from AMD is the latest.

«Each GPU has a 1GHz boost clock. Nifty, huh?»

This card is at once something we’ve already seen and something new. Some of AMD’s partners have already created single-card/dual-GPU variants themselves, with the likes of Club3D and Asus grabbing headlines for top-end performance. Indeed AMD themselves helped design parts of their partners’ cards.

“We’ve helped our partners with these products,” said AMD’s Devon Nekechuk in a recent briefing. “We actually put a lot of focus helping them develop parts of these cards, we’ve designed parts of the Ares II and Devil 13 in partnership with Powercolor and Asus.”

Now AMD have decided it needs to put out a reference version of the card to really flesh out its graphics card stack.

So, here we go again. Essentially we’re looking at another HD 7990 made up of a pair of the GPUs which power the HD 7970 GHz edition. This time though AMD have opted to keep the clock speed on this dual-GPU card similar to the single-GPU version. That means each GPU has a 1GHz boost clock. Nifty, huh?

Quite why AMD have decided that now it needs to own the HD 7990 brand with a reference model, instead of simply letting its partners continue with the donkey work, I’m still not entirely sure. “The core of this thing is that we set out to add to the family of the world’s fastest graphics card,” said Nekechuk. “We wanted to create another product worthy of the HD 7990 brand. To make sure we can cater to that market of people that don’t buy graphics cards for utilitarian purposes they really want to create a Ferrari or a Lamborghini of a PC.”

By ‘utilitarian purposes’ I assume AMD mean that the Radeon HD 7990 isn’t just a graphics card for people wanting the outright fastest performance, but for people wanting the ultimate experience. This is exactly the same way Nvidia were selling their GTX Titan a few months back.

So the AMD Radeon HD 7990 is their GTX Titan.

Unfortunately it certainly doesn’t have the luxury aesthetic of the Nvidia ultra-enthusiast cards, and nobody is making up phrases like trivalent chromium plating here. Granted, it is incredibly well engineered, and the cooling solution is very impressive, especially considering the massive triple-slot cooling solution Club3D needed for their version.

«It’s the fastest reference graphics card in the world, and yet I just can’t get excited about it.

It’s tech we’ve already seen.»

The noise levels are excellent too, even at full load. AMD have been talking about not only making sure it’s quiet in terms of decibels, but also in terms of the tonal quality of any noise it does make. And the fans on the AMD Radeon HD 7990 are at once quiet but any noise is a lot softer than the somewhat harsher tones of the GTX 690, or even the also impressively quiet GTX Titan.

But it still kinda feels like wasted effort — this card effectively already exists in the wild and yet AMD is trying to make out that it’s new and something of a big deal.

It is though very, very quick and the HD 7990 has the GTX Titan beaten in every benchmark test we put them through. Thanks to the power of the Tahiti XT it also holds its own ahead of the similarly dual-GPU GTX 690. So in those terms it’s a win; the fastest reference graphics card in the world. And yet I simply can’t get excited about it. It’s tech we’ve already seen and despite the fact that most of the time it’s running the GPUs at standard HD 7970 GHz speeds it still gets beat by a pair of AMD’s top cards in CrossFireX trim. Which are cheaper, though admittedly a fair chunk more power-hungry.

But AMD have been talking about the Radeon HD 7990 as a card that delivers the best experience, not necessarily the fastest frame rates. So it shouldn’t matter if it’s a little off the pace compared the CrossFireX pairing. Except that I struggle to see where a multi-GPU card can make for a smooth, simple, consistent gaming experience. I can’t help but distrust single-card/multi-GPU solutions. Putting two cards in one system can often be a recipe for trouble, and that’s only magnified when you’re squeezing both those cards onto one elongated slab of PCB. It’s probably drivers more than hardware, but this was one of the flakiest cards I’ve reviewed in this generation. Sometimes one GPU wouldn’t spin up and sometimes both would, seemingly at random.

«It’s probably drivers more than hardware, but this was one of the flakiest cards I’ve reviewed in this generation.

«

I’m sure that’s mainly down to immature pre-release drivers, and I did eventually get some really impressive benchmark numbers out of it once the card had settled down. But that still starkly illustrates that it’s very easy for some broken drivers to ensure a less than premium experience when you can’t get your ultra-enthusiast, ultra-expensive multi-GPU card operating happily with the very latest games.

It’s this spectre of driver issues that worries me about calling this incredibly well-engineered card the ultimate experience in graphics. A top, single-GPU card that offers performance only a little way behind, but consistently so, would get my vote.

That said, if you’re talking about ultra high-resolution gaming AMD’s CrossFireX represents the only real, affordable option of getting playable frame rates, at the highest settings, at multi-screen resolutions.

But that’s an incredibly niche sector of PC gaming, and in any case the raw performance, and higher minimum frame rates, of the HD 7970 GHz edition cards in CrossFireX trim would be your best bet for moving towards 4K gaming.

Benchmarks

All the tests were carried out on an X79 test platform with 16GB DDR3 at 2,133MHz at 2560×1600 on the highest settings with 4x AA. The initial numbers are the performance in average frames per second and the numbers in parentheses are the minimum frame rate throughout the benchmark.

Peak platform power draw

100% GPU – Watts: lower is better

AMD HD 7990 – 615W

Nvidia GTX 690 – 528W

Nvidia GTX Titan – 450W

2x AMD HD 7970 GHz – 700W

DirectX 11 tessellation performance

Heaven 4.0 – FPS: higher is better

AMD HD 7990 – 43 (18)

Nvidia GTX 690 – 42 (20)

Nvidia GTX Titan – 41 (14)

2x AMD HD 7970 GHz – 47 (18)

DirectX 11 gaming performance

Batman: Arkham City – FPS: higher is better

AMD HD 7990 – 103 (34)

Nvidia GTX 690 – 109 (27)

Nvidia GTX Titan – 95 (30)

2x AMD HD 7970 GHz – 99 (40)

Crysis 3 – FPS: higher is better

AMD HD 7990 – 48 (35)

Nvidia GTX 690 – 42 (17)

Nvidia GTX Titan – 37 (24)

2x AMD HD 7970 GHz – 55 (36)

DiRT Showdown – FPS: higher is better

AMD HD 7990 – 116 (87)

Nvidia GTX 690 – 66 (30)

Nvidia GTX Titan – 61 (46)

2x AMD HD 7970 GHz – 117 (91)

Max Payne 3 – FPS: higher is better

AMD HD 7990 – 57 (37)

Nvidia GTX 690 – 54 (32)

Nvidia GTX Titan – 42 (25)

2x AMD HD 7970 GHz – 58 (41)

Read our review policy

AMD Radeon HD 7990 6GB review

A big, quick, expensive card. But its also a slightly flaky, unreliable one thats arrived rather late to the ultra-enthusiast graphics party.

Dave has been gaming since the days of Zaxxon and Lady Bug on the Colecovision, and code books for the Commodore Vic 20 (Death Race 2000!). He built his first gaming PC at the tender age of 16, and finally finished bug-fixing the Cyrix-based system around a year later. When he dropped it out of the window. He first started writing for Official PlayStation Magazine and Xbox World many decades ago, then moved onto PC Format full-time, then PC Gamer, TechRadar, and T3 among others. Now he’s back, writing about the nightmarish graphics card market, CPUs with more cores than sense, gaming laptops hotter than the sun, and SSDs more capacious than a Cybertruck.

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AMD Radeon HD 7990 Review

The current generation AMD GPU series collectivelly known as «Southern Islands» were released over a year ago, with the beginning of its rollout in January 2012. Sixteen months later, the Radeon HD 7000 series is still very much relevant, as AMD continues to release new models under the same GPU family.

The Radeon HD 7790 released last month it’s a product most gamers have the potential to enjoy considering its $150 price tag. The HD 7790 took the chip count for the series to 10 distinct 28nm GPUs. Today AMD has a wide range of prices covered starting at $100 with the Radeon HD 7750 up to $450 with the 7970 GHz Edition.

Those able and wanting to spend in excess of $450 on a single graphics card need to look in Nvidia’s direction at either the GeForce GTX 690 or the mighty GTX Titan, both extravagant $1000 options. Alternatively, if you can support multiple graphics cards, which let’s be honest most gaming systems can, then a pair of Radeon HD 7970 GHz Edition graphics cards should work nicely (well, kind of).

Still AMD feels they need to offer an ultra-expensive graphics card as well and therefore today they are releasing the Radeon HD 7990. Although it’s been over a year since they launched the Radeon HD 7970, we are just getting an official dual-GPU version, in truth they have been around for some time.

Products such as the PowerColor Devil 13 HD 7990 6GB, HIS Radeon HD 7970 6GB IceQ X2 and Asus ROG Ares II have been doing the rounds for quite a while now. So while the release of an official Radeon HD 7990 might not be radically new, it does mean a few things. For one, pricing will be unified, as will the specifications and features. Most importantly availability and actual driver support, making it much easier for cashed up gamers to get their hands on one.

The Radeon HD 7990 is very similar to the 6990 and the 5970 before it (ohh, and the 4870 X2 before that) in the sense that it’s basically a pair of flagship GPUs from its respective generation stuck to the same extra long PCB.

In the case of the Radeon HD 7990 it takes a pair of 7970 GPUs with overclocked cores (from 925MHz to 1000MHz), while boosting the GDDR5 memory from 1375MHz to 1500MHz. These clock speeds happen to match the 7970 GHz Edition, though the 7990 doesn’t feature a Boost clock, so we feel the GPUs are better compared to the standard 7970.

Here are some figures that AMD is throwing around to describe the Radeon HD 7990: 8.6 billion transistors, 4096 stream processors, 8.2 TFLOPS computer power, 6GB GDDR5 and 576GB/s memory bandwidth.

But, of course, as a dual-GPU graphics card those figures are not nearly as impressive as they might otherwise be if we were talking about a single GPU solution. 8.2 TFLOPS of computer power is nothing to be sneezed at either, so we will be keen to see how the 7990 handles itself shortly.

The Radeon HD 7990 is a monstrous graphics card measuring 30cm long (12 in), making it 3cm longer than the 7970 GHz Edition.

The GPU core is clocked at 1000MHz, 8% higher than the HD 7970, while the memory is clocked 9% higher at 1500MHz (6. 0GHz DDR). Pairing that frequency with a 384-bit memory bus gives the HD 7990 a theoretical bandwidth of 288GB/s per GPU, for a whopping 576GB/s total.

Like the Radeon HD 7970 which comes loaded with a generous 3GB memory buffer, the 7990 allocates 3GB to each GPU for a total card capacity of 6GB.

We’ve found that when using multi-monitor setups at extreme resolutions, the larger buffer of AMD cards provide a significant advantage over Nvidia’s, which are limited to 2GB for the most part. That said, the new GeForce GTX Titan does boast a 6GB memory buffer for a single GPU.

The core configuration, or as we should say «cores», of the Radeon HD 7990 are the same as the single GPU 7970 versions. It carries 2048 SPUs, 128 TAUs and 32 ROPs on each GPU, so in a sense you can double those figures.

Connecting the two graphics processors is the PEX bridge from PLX Technologies, which is the same method employed by all previous AMD dual-GPU graphics cards. However, the HD 7990 gets the latest 3. 0 PEX8747 bridge which boasts 48 PCI Express 3.0 lanes for 96GB/s of inter-GPU bandwidth.

Cooling the «Malta» GPU are two massive aluminum vapor chamber heatsinks, each with 62 fins and four heatpipes. The vapor chamber design was first implemented by the Radeon HD 5970 and has since been adopted by numerous high-end AMD and Nvidia graphics cards. Heat is dispersed by a trio of 75x20mm axial fans that pull air in from inside the case and push it out the back.

The HD 7990’s fan operates quietly for the most part, but despite the card’s impressive idle consumption of just 15 watts, it still chugs up to 375 watts under load, so the fan does kick up a little during heavy gaming sessions.

The heatsink and fan are enclosed in a custom housing that conceals the entire graphics card, a common practice for AMD flagship products and one we tend to like. Nvidia has also done this in the past, though this is a design method that is typically reserved for only the most high-end products.

To feed the card enough power, AMD includes dual 8-pin PCI Express connectors — the same setup you’ll find on the HD 6990.

Naturally, the HD 7990 supports QuadFire (Crossfire) and so there is a connector for bridging with another card. The only other connectors are on the I/O panel. Our AMD reference sample has a dual DL-DVI connector and four mini-DisplayPort 1.2 sockets which allows support for five simultaneous monitors right out of the box.

GeForce GTX 1060 6 GB vs Radeon HD 7990 Graphics cards Comparison

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 1060 6 GB and Radeon HD 7990. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 1060 6 GB and Radeon HD 7990. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GTX 1060 6 GB

Radeon HD 7990

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Main Specs

  GeForce GTX 1060 6 GB Radeon HD 7990
Power consumption (TDP) 120 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 6.144 MB 3 GB
Display Connectors 1x DVI, 1x HDMI, 3x DisplayPort 1x DVI, 4x mini-DisplayPort
 

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  • Radeon HD 7990 has 212% more power consumption, than GeForce GTX 1060 6 GB.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GeForce GTX 1060 6 GB has 3 GB more memory, than Radeon HD 7990.
  • Both cards are used in Desktops.
  • GeForce GTX 1060 6 GB is build with Pascal architecture, and Radeon HD 7990 — with GCN 1.0.
  • Core clock speed of GeForce GTX 1060 6 GB is 556 MHz higher, than Radeon HD 7990.
  • GeForce GTX 1060 6 GB is manufactured by 16 nm process technology, and Radeon HD 7990 — by 28 nm process technology.
  • Radeon HD 7990 is 57 mm longer, than GeForce GTX 1060 6 GB.
  • Memory clock speed of GeForce GTX 1060 6 GB is 2000 MHz higher, than Radeon HD 7990.

Game benchmarks

Assassin’s Creed OdysseyBattlefield 5Call of Duty: WarzoneCounter-Strike: Global OffensiveCyberpunk 2077Dota 2Far Cry 5FortniteForza Horizon 4Grand Theft Auto VMetro ExodusMinecraftPLAYERUNKNOWN’S BATTLEGROUNDSRed Dead Redemption 2The Witcher 3: Wild HuntWorld of Tanks
high / 1080p 50−55 35−40
ultra / 1080p 35−40 21−24
QHD / 1440p 27−30 16−18
4K / 2160p 16−18 10−11
low / 720p 80−85 60−65
medium / 1080p 60−65 40−45
The average gaming FPS of GeForce GTX 1060 6 GB in Assassin’s Creed Odyssey is 43% more, than Radeon HD 7990.
high / 1080p 80−85 55−60
ultra / 1080p 70−75 45−50
QHD / 1440p 55−60 35−40
4K / 2160p 30−33 18−20
low / 720p 130−140 100−110
medium / 1080p 90−95 60−65
The average gaming FPS of GeForce GTX 1060 6 GB in Battlefield 5 is 44% more, than Radeon HD 7990.
low / 768p 45−50 50−55
QHD / 1440p 0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than GeForce GTX 1060 6 GB.
low / 768p 250−260 250−260
medium / 768p 230−240 220−230
ultra / 1080p 180−190
QHD / 1440p 150−160 110−120
4K / 2160p 100−110 70−75
high / 768p 220−230 210−220
The average gaming FPS of GeForce GTX 1060 6 GB in Counter-Strike: Global Offensive is 10% more, than Radeon HD 7990.
low / 768p 70−75 60−65
medium / 1080p 50−55 55−60
The average gaming FPS of GeForce GTX 1060 6 GB in Cyberpunk 2077 is 3% more, than Radeon HD 7990.
low / 768p 120−130 120−130
medium / 768p 110−120 110−120
ultra / 1080p 110−120 100−110
The average gaming FPS of GeForce GTX 1060 6 GB in Dota 2 is 2% more, than Radeon HD 7990.
high / 1080p 65−70 45−50
ultra / 1080p 60−65 40−45
QHD / 1440p 40−45 27−30
4K / 2160p 21−24 14−16
low / 720p 100−110 80−85
medium / 1080p 70−75 45−50
The average gaming FPS of GeForce GTX 1060 6 GB in Far Cry 5 is 44% more, than Radeon HD 7990.
high / 1080p 95−100 60−65
ultra / 1080p 75−80 45−50
QHD / 1440p 45−50 27−30
4K / 2160p 21−24 27−30
low / 720p 220−230 180−190
medium / 1080p 150−160 110−120
The average gaming FPS of GeForce GTX 1060 6 GB in Fortnite is 35% more, than Radeon HD 7990.
high / 1080p 90−95 60−65
ultra / 1080p 70−75 45−50
QHD / 1440p 50−55 30−35
4K / 2160p 35−40 24−27
low / 720p 140−150 100−110
medium / 1080p 95−100 65−70
The average gaming FPS of GeForce GTX 1060 6 GB in Forza Horizon 4 is 46% more, than Radeon HD 7990.
low / 768p 160−170 140−150
medium / 768p 150−160 120−130
high / 1080p 100−110 70−75
ultra / 1080p 50−55 30−35
QHD / 1440p 40−45 21−24
The average gaming FPS of GeForce GTX 1060 6 GB in Grand Theft Auto V is 31% more, than Radeon HD 7990.
high / 1080p 40−45 24−27
ultra / 1080p 30−35 20−22
QHD / 1440p 24−27 16−18
4K / 2160p 14−16 8−9
low / 720p 95−100 65−70
medium / 1080p 55−60 30−35
The average gaming FPS of GeForce GTX 1060 6 GB in Metro Exodus is 60% more, than Radeon HD 7990.
low / 768p 120−130 130−140
medium / 1080p 120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 8% more, than GeForce GTX 1060 6 GB.
high / 1080p 80−85
ultra / 1080p 60−65 14−16
4K / 2160p 18−20
low / 720p 120−130 100−110
medium / 1080p 90−95 18−20
The average gaming FPS of GeForce GTX 1060 6 GB in PLAYERUNKNOWN’S BATTLEGROUNDS is 102% more, than Radeon HD 7990.
high / 1080p 35−40 24−27
ultra / 1080p 24−27 16−18
QHD / 1440p 18−20 10−11
4K / 2160p 12−14 7−8
low / 720p 95−100 65−70
medium / 1080p 55−60 35−40
The average gaming FPS of GeForce GTX 1060 6 GB in Red Dead Redemption 2 is 51% more, than Radeon HD 7990.
low / 768p 190−200 130−140
medium / 768p 130−140 85−90
high / 1080p 75−80 45−50
ultra / 1080p 40−45 24−27
4K / 2160p 27−30 16−18
The average gaming FPS of GeForce GTX 1060 6 GB in The Witcher 3: Wild Hunt is 53% more, than Radeon HD 7990.
low / 768p 130−140 90−95
medium / 768p 60−65
ultra / 1080p 65−70 50−55
high / 768p 60−65
The average gaming FPS of GeForce GTX 1060 6 GB in World of Tanks is 40% more, than Radeon HD 7990.

Full Specs

  GeForce GTX 1060 6 GB Radeon HD 7990
Architecture Pascal GCN 1.0
Code name GP106 Malta
Type Desktop Desktop
Release date 19 July 2016 24 April 2013
Pipelines 1280 2048
Core clock speed 1506 MHz 950 MHz
Boost Clock 1708 MHz 1000 MHz
Transistor count 4,400 million 4,313 million
Manufacturing process technology 16 nm 28 nm
Texture fill rate 136. 7 128.0
Floating-point performance 4,375 gflops 2x 4,096 gflops
Length 250 mm 307 mm
Memory bus width 192 Bit 384 Bit
Memory clock speed 8000 MHz 6000 MHz
Memory bandwidth 192.2 GB/s 288.0 GB/s
Shared memory
G-SYNC support +
VR Ready +
DirectX 12 (12_1) 12 (11_1)
Shader Model 6.4 5.1
OpenGL 4.6 4.6
OpenCL 1. 2 1.2
Vulkan 1.2.131 1.2.131
CUDA 6.1
G-SYNC +
Bitcoin / BTC (SHA256) 459 Mh/s
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
 

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Similar compares

  • GeForce GTX 1060 6 GB vs GeForce GTX 1070 mobile
  • GeForce GTX 1060 6 GB vs GeForce GTX 1080 Max Q
  • Radeon HD 7990 vs GeForce GTX 1070 mobile
  • Radeon HD 7990 vs GeForce GTX 1080 Max Q
  • GeForce GTX 1060 6 GB vs GeForce GTX 680
  • GeForce GTX 1060 6 GB vs Radeon R9 280
  • Radeon HD 7990 vs GeForce GTX 680
  • Radeon HD 7990 vs Radeon R9 280

HD 7990 benchmark with i7-3770K 1080p, 1440p, Ultrawide, 4K benchmarks at Ultra Quality

Compare To
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— $ 30Intel Core i3-2125 @ 3.30GHz — $ 199Intel Core i3-2130 @ 3.40GHz — $ 70Intel Core i3-3210 @ 3.20GHz — $ 100Intel Core i3-3220 @ 3.30GHz — $ 34.9Intel Core i3-3225 @ 3.30GHz — $ 100Intel Core i3-3240 @ 3.40GHz — $ 46Intel Core i3-3245 @ 3.40GHz — $ 80Intel Core i3-3250 @ 3. 50GHz — $ 95Intel Core i3-4130 @ 3.40GHz — $ 140Intel Core i3-4150 @ 3.50GHz — $ 260Intel Core i3-4160 @ 3.60GHz — $ 140Intel Core i3-4170 @ 3.70GHz — $ 150Intel Core i3-4330 @ 3.50GHz — $ 180Intel Core i3-4340 @ 3.60GHz — $ 170Intel Core i3-4350 @ 3.60GHz — $ 170Intel Core i3-4360 @ 3.70GHz — $ 280Intel Core i3-4370 @ 3.80GHz — $ 450Intel Core i3-530 @ 2.93GHz — $ 20Intel Core i3-540 @ 3.07GHz — $ 21Intel Core i3-550 @ 3.20GHz — $ 180Intel Core i3-560 @ 3.33GHz — $ 30Intel Core i3-6098P @ 3.60GHz — $ 133.7Intel Core i3-6100 @ 3.70GHz — $ 166.1Intel Core i3-6300 @ 3.80GHz — $ 143Intel Core i3-6320 @ 3.90GHz — $ 160Intel Core i3-7100 @ 3.90GHz — $ 170Intel Core i3-7300 @ 4.00GHz — $ 210Intel Core i3-7320 @ 4.10GHz — $ 174.8Intel Core i3-7350K @ 4.20GHz — $ 230Intel Core i3-8100 @ 3.60GHz — $ 130Intel Core i3-8300 @ 3.70GHz — $ 179.4Intel Core i3-8350K @ 4.00GHz — $ 184Intel Core i3-9100 @ 3.60GHz — $ 170Intel Core i3-9100F @ 3.60GHz — $ 105Intel Core i3-9320 @ 3.70GHz — $ 162Intel Core i3-9350KF @ 4. 00GHz — $ 224Intel Core i5 750S @ 2.40GHz — $ 100Intel Core i5-10400 — $ 182Intel Core i5-10600K — $ 236.8Intel Core i5-11400 — $ 182Intel Core i5-11600K — $ 262Intel Core i5-12400 — $ 143Intel Core i5-12600K — $ 290Intel Core i5-2300 @ 2.80GHz — $ 80Intel Core i5-2310 @ 2.90GHz — $ 80Intel Core i5-2320 @ 3.00GHz — $ 195.3Intel Core i5-2380P @ 3.10GHz — $ 90Intel Core i5-2400 @ 3.10GHz — $ 84Intel Core i5-2400S @ 2.50GHz — $ 65.7Intel Core i5-2405S @ 2.50GHz — $ 164.4Intel Core i5-2450P @ 3.20GHz — $ 90Intel Core i5-2500 @ 3.30GHz — $ 105Intel Core i5-2500K @ 3.30GHz — $ 124Intel Core i5-2500S @ 2.70GHz — $ 75Intel Core i5-2550K @ 3.40GHz — $ 130Intel Core i5-3330 @ 3.00GHz — $ 100Intel Core i5-3330S @ 2.70GHz — $ 95Intel Core i5-3340 @ 3.10GHz — $ 262Intel Core i5-3340S @ 2.80GHz — $ 150Intel Core i5-3350P @ 3.10GHz — $ 170Intel Core i5-3450 @ 3.10GHz — $ 128Intel Core i5-3450S @ 2.80GHz — $ 100Intel Core i5-3470 @ 3.20GHz — $ 125Intel Core i5-3470S @ 2.90GHz — $ 140.1Intel Core i5-3475S @ 2. 90GHz — $ 143.5Intel Core i5-3550 @ 3.30GHz — $ 330Intel Core i5-3550S @ 3.00GHz — $ 341Intel Core i5-3570 @ 3.40GHz — $ 140Intel Core i5-3570K @ 3.40GHz — $ 144Intel Core i5-3570S @ 3.10GHz — $ 285Intel Core i5-4430 @ 3.00GHz — $ 180Intel Core i5-4430S @ 2.70GHz — $ 160Intel Core i5-4440 @ 3.10GHz — $ 170Intel Core i5-4440S @ 2.80GHz — $ 463Intel Core i5-4460 @ 3.20GHz — $ 170Intel Core i5-4460S @ 2.90GHz — $ 660Intel Core i5-4570 @ 3.20GHz — $ 175Intel Core i5-4570S @ 2.90GHz — $ 221.6Intel Core i5-4590 @ 3.30GHz — $ 185Intel Core i5-4590S @ 3.00GHz — $ 198Intel Core i5-4670 @ 3.40GHz — $ 188Intel Core i5-4670K @ 3.40GHz — $ 250Intel Core i5-4670R @ 3.00GHz — $ 276Intel Core i5-4690 @ 3.50GHz — $ 200Intel Core i5-4690K @ 3.50GHz — $ 200Intel Core i5-4690S @ 3.20GHz — $ 269.9Intel Core i5-5675C @ 3.10GHz — $ 400Intel Core i5-6400 @ 2.70GHz — $ 200Intel Core i5-6402P @ 2.80GHz — $ 190Intel Core i5-650 @ 3.20GHz — $ 100Intel Core i5-6500 @ 3.20GHz — $ 234.4Intel Core i5-655K @ 3.20GHz — $ 60Intel Core i5-660 @ 3. 33GHz — $ 49Intel Core i5-6600 @ 3.30GHz — $ 220Intel Core i5-6600K @ 3.50GHz — $ 288.9Intel Core i5-661 @ 3.33GHz — $ 100Intel Core i5-670 @ 3.47GHz — $ 90Intel Core i5-680 @ 3.60GHz — $ 90Intel Core i5-7400 @ 3.00GHz — $ 213.5Intel Core i5-750 @ 2.67GHz — $ 160.5Intel Core i5-7500 @ 3.40GHz — $ 210Intel Core i5-760 @ 2.80GHz — $ 100Intel Core i5-7600 @ 3.50GHz — $ 240Intel Core i5-7600K @ 3.80GHz — $ 251Intel Core i5-7640X @ 4.00GHz — $ 250Intel Core i5-8400 @ 2.80GHz — $ 200Intel Core i5-8500 @ 3.00GHz — $ 239Intel Core i5-8600 @ 3.10GHz — $ 244.5Intel Core i5-8600K @ 3.60GHz — $ 377.7Intel Core i5-9400 @ 2.90GHz — $ 170Intel Core i5-9400F @ 2.90GHz — $ 170Intel Core i5-9600K @ 3.70GHz — $ 280Intel Core i5-9600KF @ 3.70GHz — $ 215Intel Core i7-10700K — $ 409.1Intel Core i7-11700K — $ 410Intel Core i7-12700K — $ 470Intel Core i7-2600 @ 3.40GHz — $ 150Intel Core i7-2600K @ 3.40GHz — $ 198Intel Core i7-2600S @ 2.80GHz — $ 200Intel Core i7-2700K @ 3.50GHz — $ 200Intel Core i7-3770 @ 3.40GHz — $ 179Intel Core i7-3770K @ 3. 50GHz — $ 249Intel Core i7-3770S @ 3.10GHz — $ 200Intel Core i7-3820 @ 3.60GHz — $ 200Intel Core i7-3930K @ 3.20GHz — $ 399Intel Core i7-3960X @ 3.30GHz — $ 800Intel Core i7-3970X @ 3.50GHz — $ 954Intel Core i7-4770 @ 3.40GHz — $ 240Intel Core i7-4770K @ 3.50GHz — $ 285Intel Core i7-4770S @ 3.10GHz — $ 250Intel Core i7-4771 @ 3.50GHz — $ 300Intel Core i7-4790 @ 3.60GHz — $ 279Intel Core i7-4790K @ 4.00GHz — $ 307Intel Core i7-4790S @ 3.20GHz — $ 342.6Intel Core i7-4820K @ 3.70GHz — $ 500Intel Core i7-4930K @ 3.40GHz — $ 399Intel Core i7-4960X @ 3.60GHz — $ 770Intel Core i7-5775C @ 3.30GHz — $ 450Intel Core i7-5820K @ 3.30GHz — $ 300Intel Core i7-5930K @ 3.50GHz — $ 499Intel Core i7-5960X @ 3.00GHz — $ 770Intel Core i7-6700 @ 3.40GHz — $ 433.7Intel Core i7-6700K @ 4.00GHz — $ 335Intel Core i7-6800K @ 3.40GHz — $ 420Intel Core i7-6850K @ 3.60GHz — $ 550Intel Core i7-6900K @ 3.20GHz — $ 1200Intel Core i7-6950X @ 3.00GHz — $ 1576Intel Core i7-7700 @ 3.60GHz — $ 325.1Intel Core i7-7700K @ 4. 20GHz — $ 355Intel Core i7-7740X @ 4.30GHz — $ 349Intel Core i7-7800X @ 3.50GHz — $ 370Intel Core i7-7820X @ 3.60GHz — $ 930Intel Core i7-8086K @ 4.00GHz — $ 553Intel Core i7-860 @ 2.80GHz — $ 290Intel Core i7-860S @ 2.53GHz — $ 200Intel Core i7-870 @ 2.93GHz — $ 310Intel Core i7-8700 @ 3.20GHz — $ 454.5Intel Core i7-8700K @ 3.70GHz — $ 369.9Intel Core i7-875K @ 2.93GHz — $ 200Intel Core i7-880 @ 3.07GHz — $ 583Intel Core i7-920 @ 2.67GHz — $ 174Intel Core i7-930 @ 2.80GHz — $ 60Intel Core i7-940 @ 2.93GHz — $ 70.7Intel Core i7-950 @ 3.07GHz — $ 245Intel Core i7-960 @ 3.20GHz — $ 100Intel Core i7-965 @ 3.20GHz — $ 140Intel Core i7-970 @ 3.20GHz — $ 150Intel Core i7-9700 @ 3.00GHz — $ 330Intel Core i7-9700F @ 3.00GHz — $ 368Intel Core i7-9700K @ 3.60GHz — $ 410Intel Core i7-975 @ 3.33GHz — $ 180Intel Core i7-980 @ 3.33GHz — $ 200Intel Core i7-980X @ 3.33GHz — $ 220Intel Core i7-990X @ 3.47GHz — $ 350Intel Core i9-10900K — $ 590Intel Core i9-11900K — $ 488Intel Core i9-12900K — $ 590Intel Core i9-7900X @ 3. 30GHz — $ 1380Intel Core i9-7920X @ 2.90GHz — $ 1096.7Intel Core i9-7940X @ 3.10GHz — $ 1192.1Intel Core i9-7960X @ 2.80GHz — $ 2000Intel Core i9-7980XE @ 2.60GHz — $ 2005.5Intel Core i9-9900 @ 3.10GHz — $ 440Intel Core i9-9900K @ 3.60GHz — $ 835Intel Core2 Duo E4300 @ 1.80GHz — $ 158Intel Core2 Duo E4400 @ 2.00GHz — $ 9Intel Core2 Duo E4500 @ 2.20GHz — $ 40Intel Core2 Duo E4600 @ 2.40GHz — $ 158Intel Core2 Duo E4700 @ 2.60GHz — $ 100Intel Core2 Duo E6300 @ 1.86GHz — $ 13Intel Core2 Duo E6320 @ 1.86GHz — $ 50Intel Core2 Duo E6400 @ 2.13GHz — $ 20Intel Core2 Duo E6420 @ 2.13GHz — $ 50Intel Core2 Duo E6550 @ 2.33GHz — $ 15Intel Core2 Duo E6600 @ 2.40GHz — $ 15Intel Core2 Duo E6700 @ 2.66GHz — $ 30Intel Core2 Duo E6750 @ 2.66GHz — $ 13Intel Core2 Duo E6850 @ 3.00GHz — $ 50Intel Core2 Duo E7200 @ 2.53GHz — $ 75Intel Core2 Duo E7300 @ 2.66GHz — $ 20Intel Core2 Duo E7400 @ 2.80GHz — $ 29Intel Core2 Duo E7500 @ 2.93GHz — $ 15Intel Core2 Duo E7600 @ 3.06GHz — $ 120Intel Core2 Duo E8200 @ 2.66GHz — $ 50Intel Core2 Duo E8300 @ 2. 83GHz — $ 20Intel Core2 Duo E8400 @ 3.00GHz — $ 9.8Intel Core2 Duo E8500 @ 3.16GHz — $ 40Intel Core2 Duo E8600 @ 3.33GHz — $ 50Intel Core2 Extreme Q6800 @ 2.93GHz — $ 1125Intel Core2 Extreme Q6850 @ 3.00GHz — $ 1496Intel Core2 Extreme X6800 @ 2.93GHz — $ 263.6Intel Core2 Extreme X9650 @ 3.00GHz — $ 909Intel Core2 Extreme X9770 @ 3.20GHz — $ 1609Intel Core2 Extreme X9775 @ 3.20GHz — $ 1806Intel Core2 Quad Q6600 @ 2.40GHz — $ 40Intel Core2 Quad Q6700 @ 2.66GHz — $ 45Intel Core2 Quad Q8200 @ 2.33GHz — $ 23Intel Core2 Quad Q8300 @ 2.50GHz — $ 50Intel Core2 Quad Q8400 @ 2.66GHz — $ 99.5Intel Core2 Quad Q9300 @ 2.50GHz — $ 50Intel Core2 Quad Q9400 @ 2.66GHz — $ 34Intel Core2 Quad Q9450 @ 2.66GHz — $ 335Intel Core2 Quad Q9500 @ 2.83GHz — $ 35Intel Core2 Quad Q9505 @ 2.83GHz — $ 190Intel Core2 Quad Q9550 @ 2.83GHz — $ 49Intel Core2 Quad Q9650 @ 3.00GHz — $ 69.8Intel Pentium G2010 @ 2.80GHz — $ 34.9Intel Pentium G2020 @ 2.90GHz — $ 32.9Intel Pentium G2030 @ 3.00GHz — $ 41Intel Pentium G2120 @ 3. 10GHz — $ 46Intel Pentium G2130 @ 3.20GHz — $ 50Intel Pentium G2140 @ 3.30GHz — $ 50Intel Pentium G3220 @ 3.00GHz — $ 120Intel Pentium G3240 @ 3.10GHz — $ 80Intel Pentium G3250 @ 3.20GHz — $ 110Intel Pentium G3258 @ 3.20GHz — $ 178.3Intel Pentium G3260 @ 3.30GHz — $ 105Intel Pentium G3420 @ 3.20GHz — $ 110Intel Pentium G3430 @ 3.30GHz — $ 90Intel Pentium G3440 @ 3.30GHz — $ 159.9Intel Pentium G3450 @ 3.40GHz — $ 100Intel Pentium G3460 @ 3.50GHz — $ 288.2Intel Pentium G3470 @ 3.60GHz — $ 104.3Intel Pentium G4400 @ 3.30GHz — $ 80Intel Pentium G4500 @ 3.50GHz — $ 85.3Intel Pentium G4520 @ 3.60GHz — $ 110.9Intel Pentium G4560 @ 3.50GHz — $ 103.1Intel Pentium G4600 @ 3.60GHz — $ 100Intel Pentium G4620 @ 3.70GHz — $ 105.9Intel Pentium G640 @ 2.80GHz — $ 25Intel Pentium G645 @ 2.90GHz — $ 95Intel Pentium G840 @ 2.80GHz — $ 35Intel Pentium G850 @ 2.90GHz — $ 30Intel Pentium G860 @ 3.00GHz — $ 30Intel Pentium G870 @ 3.10GHz — $ 97Intel Pentium Gold G5400 @ 3.70GHz — $ 123.9Intel Pentium Gold G5500 @ 3. 80GHz — $ 100.3Intel Pentium Gold G5600 @ 3.90GHz — $ 100.9

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Test and review: AMD Radeon HD 7990

The «New Zealand» chip was announced back in December 2011, but the Radeon HD 7990 came out much later under the code name «Malta». In fact, we have the same video card that was planned 16 months ago. But why is the first AMD Radeon HD 7990 only coming out today? We do not have an answer to this question, but we will talk about the likely causes after the performance tests. Let’s start our review with a detailed look at the reference version of the Radeon HD 79 graphics card. 90.

AMD has been nurturing the idea of ​​introducing the Radeon HD 7990 to the market for quite some time. For many reasons, the video card still could not be released. The most significant are the technical difficulties. AMD partners talked about them back at Computex 2012. Most likely, the problem lies in the PCI Express switch — PEX8747 from PLX. The NVIDIA GeForce GTX 690 (test and review), as well as ASUS ARES II (test and review) and PowerColor HD7990 Devil 13 (test and review) video card, we did not encounter any problems. Except that the effect of micro-twitching in systems with multiple GPUs is handled better by NVIDIA video cards than AMD.

» Photostrecke

Before we get into the AMD Radeon HD 7990 graphics card and our benchmarks, let’s talk about the GPU architecture, as well as a few slides from AMD’s presentation.

Dual GPU graphics cards for AMD are nothing new, with almost every generation of GPUs, the manufacturer has released a similar model to the market, which occupies a leading position in terms of performance. But AMD’s plans were always hindered by NVIDIA, and the winners were models from the «green» or «red» camps with alternate success. In case of Radeon HD 7990 AMD wasted too much time since NVIDIA introduced the GeForce GTX 690 (Test and Review) with dual GPUs almost a year ago.

But in the case of the Radeon HD 7990, AMD does not release a completely new development, the company uses the FirePro S10000 graphics accelerator in the desktop version with changed clock speeds. Also, the cooling system was borrowed.

AMD Radeon HD 7990 graphics card has two chips, each with 4.3 billion transistors, in the case of GeForce GTX 690 we get two processors with 3.52 billion transistors each, while the GeForce GTX Titan has 7.1 billion transistors. The Radeon HD 7990 graphics card claims 8.2 TFLOPS single precision performance. For comparison, the GeForce GTX Titan has a performance of 4.5 TFLOPS, while the GeForce GTX 690 has almost 6 TFLOPS.

3 GB of GDDR5 memory is available on the GPU, so we get a total of 6 GB of video memory in the Radeon HD 7990. But this volume still should not be directly compared with the 6 GB of the GeForce GTX Titan, since the GPU gets access to all 6 GB there. Working with Radeon HD 79 memory90 is close to Radeon HD 7970 3GB. So doubling the memory to 6 GB in this vein is not so important.

The «Tahiti» GPU can drive up to six displays, so in the case of the Radeon HD 7990 it is theoretically possible to connect more monitors than the stated five. Half of the slot cap was left free, AMD also installed a dual-link DVI output. Eyefinity systems with more than five monitors are rare, so this should suffice.

For a long time, there have been rumors that AMD is developing its own chip for communication between the GPU and the PCI Express interface. But, as you can see, the video card uses the well-known PEX8747 from PLX, which we have already seen on many models with two GPUs.

The more heat generated, the more efficiently the GPU and memory chips, as well as other components, have to be cooled. A video card with two GPUs has never had a trivial cooling system. In the case of the Radeon HD 7990, AMD used the same cooler as the professional FirePro S10000 graphics card. Three fans and a massive heatsink are designed to remove all the accumulated heat. How well the cooler copes with its work, we will discuss in the tests section.

Zero Core Power was introduced with the Radeon HD 7000 line to ensure low idle power consumption. Modern video cards consume only 10-15 watts at idle with active 2D display output. If the monitor is turned off, Zero Core Power technology also turns off other areas of the GPU, and may also stop the fan. In 2D mode, the Radeon HD 7990 graphics card also disables one of the two GPUs to save power, and also protects the user’s nerves by reducing the fan speed.

Architecture

Now that we’ve covered the most important new features of the Radeon HD 7990, let’s dive into the technical specifications.

AMD Radeon HD 7990
Retail price N/A
Manufacturer website AMD
Specifications
GPU 2x Tahiti XT2
Process 28 nm
Number of transistors 2x 4. 3 billion
GPU clock speed (base frequency) 950 MHz
GPU clock speed (Boost frequency) 1000 MHz
Memory frequency 1500 MHz
Memory type GDDR5
Memory size 2x 3072 MB
Memory bus width 2x 384 bit
Memory bandwidth 2x 288 GB/s
DirectX version 11.1
Stream Processors 2x 2048 (1D)
Texture blocks 2x 128
Raster pipelines 2x 32
Pixel fill rate 2x 32 Gpixel/s
SLI/CrossFire CrossFire

The Radeon HD 7990 graphics card uses two «Tahiti XT2» GPUs, familiar to us from the Radeon HD 7970 GHz Edition. Here we get the updated «Tahiti XT2» chips that work in the ASUS ARES II video card (test and review), unlike the regular «XT» chips used in the PowerColor HD7990 Devil 13 (test and review). Both GPUs run at a fixed clock speed of 950 MHz, in Boost mode they increase the clock speed to 1000 MHz. 3072 MB of GDDR5 memory for both GPUs operate at a frequency of 1500 MHz and are connected via a 384-bit bus. The bandwidth is 288 GB / s, like the Radeon HD 7970 GHz Edition.

Two «Tahiti XT» GPUs provide a total of 4096 stream processors, 256 texture units and 64 raster operations pipelines (ROPs). On the next page, we will compare the architectural specifications of the novelty with the GeForce GTX 690 and GeForce GTX Titan. This will allow you to give a theoretical assessment of the capabilities of the Radeon HD 7990.

<>Test and review: AMD Radeon HD 7990
AMD Radeon HD 7990 | Test unit in detail

Radeon HD 7990 [in 2 benchmarks]

Radeon HD 7990

  • PCIe 3. 0 x16 interface
  • Core clock 950 MHz
  • Video memory size 3 GB
  • Memory type GDDR5
  • Memory frequency 6000 MHz
  • Maximum resolution

Description

AMD started Radeon HD 7990 sales on April 24, 2013 at a suggested price of $999. This is a desktop video card based on the GCN 1.0 architecture and 28 nm manufacturing process, primarily aimed at gamers. It has 3 GB of GDDR5 memory at 6 GHz, and coupled with a 384-bit interface, this creates a bandwidth of 288.0 GB / s.

In terms of compatibility, this is a two-slot PCIe 3.0 x16 card. The length of the reference version is 307 mm. The connection requires two 8-pin additional power cables, and the power consumption is 375 watts.

It provides poor performance in tests and games at the level of

18.85%

from the leader, which is the NVIDIA GeForce RTX 3090 Ti.


Radeon HD
7990

or


GeForce RTX
3090 Ti

General information

Information about the type (desktop or laptop) and architecture of the Radeon HD 7990, as well as when sales started and cost at that time.

Performance rating 253 9years ago)
Price at the time 999 $
price 537 (0.5x) 0

900 900 900 900 900 900 900 2

Value for money

To obtain an index, we compare the characteristics of video cards and their cost, taking into account the cost of other cards.

  • 0
  • 50
  • 100

Features

Radeon HD 7990’s general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. They indirectly speak of Radeon HD 7990’s performance, but for precise assessment you have to consider its benchmark and gaming test results.

Number of stream processors of 16384 (Radeon Pro Duo)

Compatibility and dimensions

Information on Radeon HD 7990 compatibility with other computer components. Useful for example when choosing the configuration of a future computer or to upgrade an existing one. For desktop video cards, these are the interface and connection bus (compatibility with the motherboard), the physical dimensions of the video card (compatibility with the motherboard and case), additional power connectors (compatibility with the power supply).

Video connectors 1x DVI, 4x mini-DisplayPort

2 API support

APIs supported by Radeon HD 7990, including their versions.

1 Overall benchmark performance

This is our overall performance rating. We regularly improve our algorithms, but if you find any inconsistencies, feel free to speak up in the comments section, we usually fix problems quickly.

HD 7990
18.85

  • Passmark
  • 3DMark Fire Strike Graphics
Passmark

This is a very common benchmark included in the Passmark PerformanceTest package. He gives the graphics card a thorough evaluation by running four separate tests for Direct3D versions 9, 10, 11 and 12 (the latter is done in 4K resolution if possible), and a few more tests using DirectCompute.

Benchmark coverage: 26%

HD 7990
5565

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests showing a fight between a humanoid and a fiery creature that appears to be made of lava. Using a resolution of 1920×1080, Fire Strike demonstrates fairly realistic graphics and is quite demanding on hardware.

Benchmark coverage: 14%

HD 7990
15540


Mining hashrates

Radeon HD 7990 performance in cryptocurrency mining. Usually the result is measured in mhash / s — the number of millions of solutions generated by the video card in one second.

Directx 12 (11_1)
Sheder Model 5.1
Bitcoin / BTC (SHA256) 459 Mh/s
Ethereum / ETH (DaggerHashimoto) 44 Mh/s

Game tests

FPS in popular games on the Radeon HD 7990, as well as compliance with system requirements. Remember that the official requirements of the developers do not always match the data of real tests.

Average FPS
Popular games

Relative performance

Radeon HD 79 Overall Performance90 compared to the closest competitors among desktop graphics cards.


NVIDIA GeForce GTX 770
105.68

AMD Radeon R9 280X
104.88

AMD Radeon R9 280
101.86

AMD Radeon HD 7990
100

NVIDIA GeForce GTX 680
99. 95

NVIDIA GeForce GTX 690
99.73

NVIDIA GeForce GTX 760 Ti OEM
97.51

Competitor from NVIDIA

We believe that the nearest equivalent to Radeon HD 7990 from NVIDIA is GeForce GTX 680, which is approximately equal in speed and lower by 1 position in our rating.


GeForce GTX
680

Compare

Here are some of NVIDIA’s closest competitors to the Radeon HD 7990:

NVIDIA GeForce GTX 1050 Ti
113.32

NVIDIA GeForce GTX 960
108.38

NVIDIA GeForce GTX 770
105.68

AMD Radeon HD 7990
100

NVIDIA GeForce GTX 680
99.95

NVIDIA GeForce GTX 690
99. 73

NVIDIA GeForce GTX 760 Ti OEM
97.51

Other video cards

Here we recommend several video cards that are more or less similar in performance to the reviewed one.


GeForce GTX
690

Compare


GeForce GTX
690

Compare


GeForce GTX
690

Compare


GeForce GTX
690

Compare


GeForce GTX
690

Compare


GeForce GTX
690

Compare

Recommended Processors

According to our statistics, these processors are most often used with the Radeon HD 7990.


A8
6410

4.9%


Xeon E5
2650v2

4.1%


Core i5
2500K

3.3%


Core i7
4770

3.3%


FX
6300

2.4%


Core i5
1035G1

2.4%


Core i3
9100F

2.4%


Core i5
2310

1.6%


Core i5
3230M

1.6%


E
300

1. 6%

User rating

Here you can see the rating of the video card by users, as well as put your own rating.


Tips and comments

Here you can ask a question about Radeon HD 7990, agree or disagree with our judgements, or report an error or mismatch.


Please enable JavaScript to view the comments powered by Disqus.

Reference version. AMD Radeon HD 79 video card review and testing90

Contents

  • Introduction
  • Appearance and dimensions
  • PCB
  • Cooling system
  • Test bench
  • Testing Instruments and Methods
  • Cooling System Potential Study
  • Comparison of cooling system results
  • Cooling Performance Summary
  • Acceleration
  • Overclocking results
  • Summing up
  • Conclusion
  • behind the scenes

Introduction

AMD’s new dual-processor flagship became an occasion for the company to declare its superiority over its competitor. It took a long time to wait for the reference version, but, as it turned out, not in vain. Who would have thought that the developers would squeeze 1000 MHz out of each GPU in the Radeon HD 7990. Just think, NVIDIA fans will say. The GeForce GTX 690 video card has been on the market for a long time and quite easily takes 1000 MHz. But to be honest…

The core of the GeForce GTX 690 is nothing but the GK104 with all its advantages and disadvantages. In terms of advantages, excellent energy efficiency can be noted, since the absence of FP64 saved the core budget and lowered the consumption level, and the floating frequencies of GPU Boost had a positive effect on the gluttony of the model. All NVIDIA innovations make it possible to speak of GK104 as the most energy efficient core. And in order to honestly compare, you need to take not the GK104, and not even the GK110, but something in between. What will it be correct to compare the Radeon HD 79 with90.

As for the price, the price of AMD Radeon HD 7990 will most likely be equal to the price of GeForce GTX 690. The latter will lose in games in terms of the number of average frames, but at the same time it will take its toll in terms of consumption. But it also has a noticeable minus — it is not suitable for distributed computing. But AMD’s new product is a universal solution for any task, while its opponent is suitable only for games. I will say in advance that in this review you will not find gaming performance results, and one of the reasons for this is the earlier testing of the PowerColor HD 7990.

Yes, those tests resulted in the recorded superiority of the Radeon HD 7990 even at 950 MHz, what can we say about the reference version, whose nominal frequencies are 1000 MHz. I advise you to wait a little and be patient. AMD once again forced the competitor to move and prepare new drivers that will appear in just a few days. Soon after their release, both video cards will be re-tested with new drivers, after which it will be possible to finally talk about the leadership of one or another model, summing up the final line.

In the meantime, let’s move on to a detailed review of the new AMD flagship.

Appearance and dimensions


recommendations


Model

A,

mm

b,

mm

c,

mm

D,

mm

A1,

mm

b1,

mm

C1,

mm
AMD Radeon HD 7990

305

98

34

86

305

98

40
NVIDIA GeForce GTX 690

280

98

34

84

281

99

40
NVIDIA GeForce GTX Titan

267

98

36

64

267

98

40
PowerColor HD 7990

292

124

53

75/88

310

130

62

A — length of the printed circuit board, without taking into account the cooling system and the bracket for video output ports.
B — PCB width, excluding PCI-E pins and cooling system.
C — height from the horizontal plane of the printed circuit board to the level of the upper surface of the cooling system.
D — diameter of the fan/s along the outer radius.

А1 — length of the printed circuit board, including the cooling system (if it extends beyond the printed circuit board) to the bracket for the video output ports.
B1 — width of the printed circuit board, excluding PCI-E pins, but with measurement of the cooling system (if it goes beyond the printed circuit board).
С1 — height, taking into account the back plate (if any) / radiator mounting screws to the level of the upper surface of the cooling system. If it is lower than the height of the back plate of the video output ports, then the height is measured to the top point of the bar.

AMD continues its tradition with a massive glossy casing, a DVI port, and four mini DisplayPorts. Of the innovations, it is worth noting the cutouts on the sides of the video card and in the upper part of the back side, designed to remove heated air, which will be enough here. A pair of 8-pin power connectors also hints at high consumption — the declared TDP is 375 watts. The plate installed on the reverse side not only protects the board from mechanical damage, but also cools the memory chips.

What surprised me the most was the length of AMD’s new product — 305 mm, which makes the video card the leader in this parameter among modern gaming models. A little more and it will be possible to equip it with a handle for fixing it in server cases. On the other hand, the company’s engineers managed to create a graphics accelerator that is acceptable in size and does not go beyond what is permitted: the height and width correspond to standard solutions.

PCB

Let’s move on to the most interesting part of the AMD Radeon HD 7990 — to its structure. The 305mm graphics card housed two graphics cores and a dozen memory chips on either side of the PCB. On the reverse side, the individual elements are prudently protected by a transparent tape from contact with the plate. An odd approach for a $1,000 flagship. At first glance, in terms of power, everything is very simple.

Each GPU has four power phases. Here it is worth noting that AMD is truly great, remaining true to Volterra components. Indeed, the products of this company have amazing properties, but, alas, they were not without flaws. Microcircuits are very fragile, so handle them very carefully.

So, four VT1676 chips are allocated for the left and right GPUs, they are quite modern, and Volterra is too closed a supplier to find a sane description on them. Previously, AMD used VT1636, and judging by the index, they have been upgraded. The entire row is cooled by a separate copper (!) radiator. Coiltronics coils are grouped into two groups of four. I don’t know about you, but I often hear complaints about such decisions. Recall at least the Radeon HD 6990 or HD 7950 / HD 7970, which are a little under load, but squeak. I hope the AMD Radeon HD 7990 will be silent in the tests.

Next are two memory power phases, created using VT263. Let me remind you that Volterra VT243WF was installed on the Radeon HD 6970. Then a strange pair: VT261 and VT243, which refer to the memory IO power system. Until the moment of measuring the voltage, I still doubted the involvement of both microcircuits in the IO memory, but the multimeter put everything in its place. It remains a mystery why it was necessary to use two different power transistors.


GPU PWM controller — Volterra VT1556MF, our old friend from the Radeon HD 6950 / HD 6970 / HD 6990 video cards. In theory, even the voltmod remains identical — a 20-50 Ohm variable resistor between the first and second legs of the PWM controller.


A pair of 365 mm Tahiti GPUs 2 is placed on a PCB substrate in the 2nd week of 2013 and contains 4300 million transistors, being made on a 28 nm process technology. Their silicon crystals are protected by metal frames, but from now on they do not rise above the horizontal plane of the GPU, but lie 0.2 mm below it. Hooray, the developers finally heard the consumers and lowered the frame, now you can install any alternative cooling system.


Combines the graphics cores of the PLX PEX8747 bridge with full support for the PCI-e 3.0 protocol.

Twenty-four Hynix memory chips soldered on the front and labeled H5GQ2h34AFR-R0C. They are designed for frequencies up to 1500 MHz (effective frequency 6000 MHz), the bus width is 384 bits.

The final power phase formula is (4+4)+(2+2)+(1+1) (GPU/MEM/PLL).


AMD Radeon HD 7990 is set to 1000 MHz for graphics cores and 6000 MHz for memory.

Cooling System

The AMD Radeon HD 7990’s CO design is one of those things you can talk about endlessly. The reason is simple: the engineers faced not one, but two tasks. Firstly, not one, but two graphics cores have to be cooled. Secondly, the food system based on Volterra requires a competent approach. Thirdly, the total power consumption of the video card exceeds 350 watts. Fourth, the amount of free space allocated for cooling is limited to two slots and a standard width of 98 mm.

Let’s start in order.

The notorious red-and-black cooling shroud has become the face of the entire family of AMD graphics accelerators year after year. Its glossy surface gets dirty easily. I am not a fan of any gloss and I think that it is time for the company to change the style. However, the shroud can be easily removed to give access to the main heatsinks.

The cooling system uses separate heatsinks for each GPU. Formally, they are mirror-symmetrical, but do not believe your eyes, they are slightly different in area. In the center is a copper heat dissipator for the graphics core power system. After removing the radiators, it will be possible to get to the massive plate.

As you can see, the manufacturer has provided the possibility of installing separate water blocks and glasses for nitrogen without removing the memory cooling and VRM. The fact is pleasant and not widespread these days. Theoretically, CBO enthusiasts should save a little on buying two separate water blocks, instead of one completely covering the video card.

Three fans with a rotating part diameter of 86 mm are mounted in the casing. All are connected so that you can observe the revolutions. It is worth noting that one pair of cables goes to the right side of the video card, and the cord from the left fan goes to the left.

Separate plate distributes heat from memory chips and power system. As mentioned, the VRM is cooled by a high-finned copper heatsink. It is located in such a way that a medium fan constantly blows on it.

To remove the plate, unscrew the rear screws and carefully dismantle the second heatsink plate.

The design of the main radiators is simple, they are made in the form of a monolithic aluminum product with an integral part in the form of ribs. Four heat pipes extend sideways from the middle. The surface that touches the GPU is grooved to distribute the thermal paste evenly. Behind the whole structure is held by a curved plate and four spring-loaded screws.

The right radiator is slightly different from the left one in dimensions and usable area. In reality, this small difference will clearly manifest itself in the results of testing.

In general, the cooling of the AMD Radeon HD 7990 deserves respect. All places are worked out, a lot of attention is paid to details. The surface of the radiators is completely exposed to the fans. The diameter of the latter is impressive, within the width of the video card (98 mm). The main part of the power supply is cooled by a separate copper radiator. Absolutely all memory chips are not forgotten! No one even thought about saving, as a result, all fans are equipped with monitoring.

It’s hard to believe, but the dimensions of the entire cooling system fit into the standard two slots. Maybe the glossy surface looks simple or boring, but, in fact, all the insides are really matched with the expectation of high heat dissipation. It remains to check the CO in action, as well as overclocking.