Radeon hd 7790 dual x: Sapphire HD 7790 Dual-X OC Specs

Sapphire Radeon HD 7790 1GB Dual-X Review

Written by

Matthew Lambert

March 22, 2013 | 07:00

Tags: #bonnaire-xt #graphics-core-next

Companies: #amd #sapphire

1 — Sapphire Radeon HD 7790 1GB Review2 — Test Setup3 — Sapphire Radeon HD 7790 1GB — Battlefield 3 Performance4 — Sapphire Radeon HD 7790 1GB — Crysis 3 Performance5 — Sapphire Radeon HD 7790 1GB — Skyrim Performance6 — Sapphire Radeon HD 7790 1GB — The Witcher 2 Performance7 — Sapphire Radeon HD 7790 1GB — Unigine Heaven 3.0 Benchmark8 — Sapphire Radeon HD 7790 1GB — Power and Thermals9 — Sapphire Radeon HD 7790 1GB — Overclocking10 — Sapphire Radeon HD 7790 1GB — Performance Analysis and Conclusion

Sapphire Radeon HD 7790 1GB Review

Manufacturer: Sapphire
UK Price (as reviewed):£129.99 (inc VAT)
US Price (as reviewed): Approx. $159 (ex Tax)

While rumours and details first began to surface a little over a week ago about a new AMD graphics card, today marks its official unveiling and launch. The Bonnaire XT GPU has been christened the Radeon HD 7790 1GB, and as such sits in between AMD’s Radeon HD 7770 1GB and HD 7850 2GB SKUs. It’s based on the South Islands architecture, and is built around a new 28nm chip consisting of 2.08 billion transistors.

The HD 7790 1GB stock cards are set to enter the market for £120. With HD 7770 1GB cards costing just under £90 now and HD 7850 2GB cards costing around £150, the new card fills a gap in AMD’s pricing structure rather neatly. However, unofficial Radeon HD 7850 1GB cards can be found for about £125 now, and our testing demonstrated that at 1,920 x 1,080 there is no discernible difference in performance compared to the 2GB model, so the HD 7790 1GB still has its work cut out for it, as it’s 1080p gamers that the HD 7790 1GB directly targets.

Click to enlarge — The Sapphire Radeon HD 7790 1GB

The closest competition from Nvidia is the £100 GTX 650 Ti 1GB, which AMD claims the HD 7790 1GB easily outperforms. However, Nvidia is rumoured to be producing a faster model of the GTX 650 Ti, which now seems likelier given this launch. Not only that, but the next card up in Nvidia’s range is the £170 GTX 660 2GB, which leaves a sizeable chunk of the crucial mid-range market uncovered by the green side, at least for now.

The new HD 7790 1GB GPU consists of 14 Compute Units, just two less than the HD 7850 2GB. As such, it has a total of 56 texture units and 896 stream processors. Although part of the 7700-series by name, the HD 7790 1GB shares the same dual front-end design as the 7800 and 7900-series cards, sporting a pair of geometry engines for tesselation duties alongside a duo of rasterisers. The HD 7790 1GB also has a couple of 64-bit memory controllers for a total 128-bit memory interface, as well as 16 ROPs, so in these regards it is akin the HD 7770 1GB. At stock speeds, the GPU runs at 1GHz and the 1GB of GDDR5 memory runs at 1.5GHz (6GHz effective), a third faster than the HD 7770 1GB’s 4. 5GHz memory.

Click to enlarge — The new AMD GPU and its design diagram

AMD’s PowerTune and ZeroCore technologies also return with the HD 7790 1GB, with both used to help manage the card’s power output. Essentially, the former alters voltage and clock speeds on the fly, for supposedly improved power efficiency, while the latter puts the card into a low power state when it isn’t displaying a signal (i.e. when your monitor is switched off). AMD claims the new card has a typical power draw of 85W, just 5W more than the HD 7770 1GB.

The card we’ve got our hands on for testing is Sapphire’s Dual-X edition, which will retail for around £130. It’s a dual slot model that is 216mm long. The rear I/O panel consists of an HDMI output, a DisplayPort connection and two dual-link DVI ports. Sapphire has applied a 7.5 percent overclock to the GPU, taking it to 1,075MHz, as well as taking the memory up by just under 7 percent to 6.4GHz effective. This takes its memory bandwidth up from the stock 96GB/s to 102. 4GB/s. We’ll be testing at both stock speeds and Sapphire’s overclocked ones.

Click to enlarge — The PCB and the Dual-X cooling solution

All of the card’s components are on the front side of its PCB, with the GPU in the centre surrounded by four 256MB memory chips. Sapphire seems to have missed the memo that size isn’t everything, however, as for some reason around two inches of the PCB at the far side is filled with exactly nothing, though it does provide some protection for the over sized cooler. The card is powered via its single top-mounted 6-pin PCI-E power connection. Four power phases near the rear I/O panel serve the GPU, while an extra one serves the memory, for a total of 5+1 phase power. A single CrossFire bridge is also found, thereby enabling multi-GPU set-ups.

Sapphire’s Dual-X cooling solution comprises two 80mm fans and a single large heatsink (although the main VRMs also have a tiny heatsink of their own). It’s encased in a black and grey plastic shroud with angled edges, but as this doesn’t fully seal the heatsink hot air will be exhausted into your case as well as out of the rear I/O panel. A large copper baseplate completely covers the GPU, and the memory chips are also covered by foam padding on a flat aluminium surface. A pair of copper heat pipes transfer heat into the large aluminium fin stack, which is then cooled by the down draft fans.

Specifications

Graphics processor AMD Radeon HD 7790 1GB, 1,075MHz
Pipeline 896 stream processors, 56 texture units, 16 ROPs
Memory 1GB GDDR5, 6.4GHz effective
Bandwidth 102.4GB/sec, 128-bit interface
Compatibility DirectX 11.1, OpenGL 4.2
Outputs/Inputs HDMI, DisplayPort, DVI-I, DVI-D
Power connections 1 x 6-pin, top-mounted
Size 216mm, dual-slot
Warranty Two years

1 — Sapphire Radeon HD 7790 1GB Review2 — Test Setup3 — Sapphire Radeon HD 7790 1GB — Battlefield 3 Performance4 — Sapphire Radeon HD 7790 1GB — Crysis 3 Performance5 — Sapphire Radeon HD 7790 1GB — Skyrim Performance6 — Sapphire Radeon HD 7790 1GB — The Witcher 2 Performance7 — Sapphire Radeon HD 7790 1GB — Unigine Heaven 3. 0 Benchmark8 — Sapphire Radeon HD 7790 1GB — Power and Thermals9 — Sapphire Radeon HD 7790 1GB — Overclocking10 — Sapphire Radeon HD 7790 1GB — Performance Analysis and Conclusion

AMD Radeon HD 7790 vs Sapphire HD 7790 Dual-X OC: What is the difference?

40points

AMD Radeon HD 7790

42points

Sapphire HD 7790 Dual-X OC

Comparison winner

54 facts in comparison

AMD Radeon HD 7790

Sapphire HD 7790 Dual-X OC

Why is AMD Radeon HD 7790 better than Sapphire HD 7790 Dual-X OC?

32mm narrower?
183mmvs215mm
2 more mini-DisplayPort outputs?
2vs0
10mm shorter?
110mmvs120mm

Why is Sapphire HD 7790 Dual-X OC better than AMD Radeon HD 7790?

75MHz faster GPU clock speed?
1075MHzvs1000MHz
0.13 TFLOPS higher floating-point performance?
1.93 TFLOPSvs1. 79 TFLOPS
1.2 GPixel/s higher pixel rate?
17.2 GPixel/svs16 GPixel/s
100MHz faster memory clock speed?
1600MHzvs1500MHz
400MHz higher effective memory clock speed?
6400MHzvs6000MHz
4.2 GTexels/s higher texture rate?
60.2 GTexels/svs56 GTexels/s
6GB/s more memory bandwidth?
102GB/svs96GB/s
1 more DisplayPort outputs?
1vs0

AMD Radeon HD 7790

AMD Radeon R5

Sapphire HD 7790 Dual-X OC

AMD Radeon R9 280X

AMD Radeon HD 7790

AMD Radeon RX Vega 8

Sapphire HD 7790 Dual-X OC

Asus ROG Matrix R9 280X

AMD Radeon HD 7790

Nvidia GeForce GTX 1050

Sapphire HD 7790 Dual-X OC

Sapphire HD 7730 2GB

AMD Radeon HD 7790

AMD Radeon Vega 8

Sapphire HD 7790 Dual-X OC

Nvidia GeForce GTX 560 Ti (OEM)

AMD Radeon HD 7790

AMD Radeon R7 250

Sapphire HD 7790 Dual-X OC

AMD Radeon RX 480

AMD Radeon HD 7790

Asus GeForce GTX 660 Ti DirectCU II 3GB

Sapphire HD 7790 Dual-X OC

AMD Radeon R9 270X

AMD Radeon HD 7790

Asus Radeon RX 550

Sapphire HD 7790 Dual-X OC

MSI HD 7730 Low Profile

AMD Radeon HD 7790

Galaxy GeForce GTX 660 Ti GC

AMD Radeon HD 7790

MSI Radeon RX 580 Armor 8GB

AMD Radeon HD 7790

AMD Radeon HD 7850

Price comparison

User reviews

Overall rating

AMD Radeon HD 7790

1 User reviews

AMD Radeon HD 7790

9. 0/10

1 User reviews

Sapphire HD 7790 Dual-X OC

0 User reviews

Sapphire HD 7790 Dual-X OC

0.0/10

0 User reviews

Features

Value for money

7.0/10

1 votes

No reviews yet

Gaming

8.0/10

1 votes

No reviews yet

Performance

8.0/10

1 votes

No reviews yet

Quiet operation

10.0/10

1 votes

No reviews yet

Reliability

8.0/10

1 votes

No reviews yet

Performance

GPU clock speed

1000MHz

1075MHz

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

GPU turbo

Unknown. Help us by suggesting a value. (AMD Radeon HD 7790)

Unknown. Help us by suggesting a value. (Sapphire HD 7790 Dual-X OC)

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

pixel rate

16 GPixel/s

17.2 GPixel/s

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

floating-point performance

1.79 TFLOPS

1.93 TFLOPS

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

texture rate

56 GTexels/s

60.2 GTexels/s

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

GPU memory speed

1500MHz

1600MHz

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

shading units

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

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.

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

effective memory speed

6000MHz

6400MHz

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.

maximum memory bandwidth

96GB/s

102GB/s

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

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.

GDDR version

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

memory bus width

128bit

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.

Supports ECC memory

✖AMD Radeon HD 7790

✖Sapphire HD 7790 Dual-X OC

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

DirectX version

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

OpenGL version

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

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.

Supports multi-display technology

✔AMD Radeon HD 7790

✔Sapphire HD 7790 Dual-X OC

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.

load GPU temperature

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

supports ray tracing

✖AMD Radeon HD 7790

✖Sapphire HD 7790 Dual-X OC

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

Supports 3D

✔AMD Radeon HD 7790

✔Sapphire HD 7790 Dual-X OC

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

supports DLSS

✖AMD Radeon HD 7790

✖Sapphire HD 7790 Dual-X OC

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.

AMD SAM / Intel Resizable BAR

Unknown. Help us by suggesting a value. (AMD Radeon HD 7790)

Unknown. Help us by suggesting a value. (Sapphire HD 7790 Dual-X OC)

AMD’s Smart Access Memory (SAM) and Intel’s Resizable BAR are two technologies that allow the CPU to have faster access to the graphics card, which can give a performance boost. It requires a compatible motherboard, graphics card, and CPU.

Ports

has an HDMI output

✔AMD Radeon HD 7790

✔Sapphire HD 7790 Dual-X OC

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

HDMI ports

Unknown. Help us by suggesting a value. (AMD Radeon HD 7790)

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

HDMI version

Unknown. Help us by suggesting a value. (AMD Radeon HD 7790)

Unknown. Help us by suggesting a value. (Sapphire HD 7790 Dual-X OC)

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

DisplayPort outputs

Allows you to connect to a display using DisplayPort.

USB-C ports

Unknown. Help us by suggesting a value. (AMD Radeon HD 7790)

Unknown. Help us by suggesting a value. (Sapphire HD 7790 Dual-X OC)

With more USB-C ports, you are able to connect more devices/peripherals.

DVI outputs

Allows you to connect to a display using DVI.

mini DisplayPort outputs

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

Price comparison

Review of the video card Sapphire Radeon HD 7790 1GB GDDR5 DUAL-X OC + CrossfireX mode

For all fans of AMD, as well as for the mainstream segment, the voiced company has released, to some extent, the long-awaited video card Radeon HD 7790. This is exactly the case. characteristic, because the «chasm» of the assortment, which formed between $130-200, had to be filled with something for a long time, because it is this amount that modern users are most often willing to pay for a graphics card. A sort of «golden egg» is our today’s guest.

We will get acquainted with the new chip on 28 nm process technology (Bonaire) using the Sapphire HD 7790 1GB GDDR5 DUAL-X OC adapter as an example. It is quite obvious that this product occupies a place in the middle between the Radeon HD 7770 and Radeon HD 7850. It is more expedient to compare the new model with its predecessor, because the Radeon HD 7790 is still another representative of the Radeon HD 77xx line.
From now on, the older «sister» has 896 universal processors, the predecessor has 640. It is due to them that we can expect a significant increase in performance. The number of texturing units has also increased, from 40 to 56 pieces. The memory bus width, as well as its standard (GDDR5), remains the same — 128 bits, which, on the one hand, is logical, because this is the HD 77xx line, and on the other hand, it will become a visible obstacle for comfortable playing modern applications in high resolution. Regarding clock frequencies, only the desired value of RAM has changed — 1500 MHz versus 1125 MHz for its predecessor, the chip runs at the same 1000 MHz.

Sapphire engineers decided to increase the nominal capabilities of the chip by overclocking it to 1075 MHz, on the one hand a little, but still nice. In addition, Sapphire HD 7790 1GB GDDR5 DUAL-X OC is equipped with an efficient dual-fan cooling system that is very quiet during operation. At least the «carlson» from the central processor, operating at 1700 rpm, worked clearly louder.

Testing showed that the capabilities of the new adapter are enough for high-quality image processing, but only at an average screen resolution. 1920×1080 is the maximum value at which a playable frame/s will be saved in modern 3D applications. Given that the settings will be at «high» and «very high» levels.

To conquer the most peak gaming peaks, we have prepared a surprise — the second video card Sapphire HD 7790 1GB GDDR5 DUAL-X OC. As a result, we managed to find out what a bunch of two “horses” is capable of in CrossfireX mode. In addition to a couple of video cards, the following took part in testing: the Intel Core i5-3470 3200 MHz central processor, as well as the ECS Z77h3-A4 motherboard. It’s no secret that at the moment the latest driver on the AMD website is Catalyst 13.1, it is not suitable for the new video card, it is simply not in the list of supported adapters. However, if you dig a little deeper, you can find the necessary software specifically for the Radeon HD 7790.

CrossfireX of two Radeon HD 7790s works without problems with the voiced driver package, however, many gaming applications, such as Tomb Raider and Crysis 3, are not particularly happy with the second “assistant”. This is expressed either in the refusal to launch the program at all, or in the incorrect display of some textures (even adding games to the Catalyst Control Center profile in different CrossfireX modes did not help), while the overall performance of the graphics subsystem increased. For example, in the game BioShock Infinite, as well as the 3DMark benchmark, the overall power indicator increased by 30-50%. Of course, there is no question of a two-fold advantage, and even when this happened, if we talk specifically about graphic tandems.

There is reason to believe that the situation with optimization will be completely resolved in the next driver packages, but for now the product has just entered the market, and the necessary software is under development or refinement.

It should be noted that the core temperature in CrossfireX mode increased, but not significantly. In any case, there is no cause for concern.

Finally, a symbolic overclocking of a single card Sapphire HD 7790 1GB GDDR5 DUAL-X OC was performed. With 1075 MHz on the chip, we managed to achieve a stable 1200 MHz without any problems. But it didn’t affect performance in any way. The “additive” from overclocking turned out to be less than 10%, which is hardly a significant indicator. Conquering a greater value, as well as increasing the memory clock speed, was prevented, again, by the driver, the update of which we are waiting for in the near future.

So far, the novelty has not yet appeared in Russian retail, and we can only guess how much the starting price will differ from the recommended $150. I would like to believe that it is insignificant, because the product turned out to be very solid and productive. Exactly what an adapter should be, occupying a niche between the Radeon HD 7770 and the Radeon HD 7850. 3

Keywords: Sapphire

AMD Radeon HD 6870 vs Sapphire HD 7790 Dual-X OC comparison

Sapphire HD 7790 Dual-X OC

AMD Radeon HD 6870

WINNER

Sapphire HD 7790 Dual-X OC

Rating: 10 points

AMD Radeon HD 6870

Rating: 7 points

Performance

Memory

General Information

Functions

Benchmark tests

Top specifications and features

Passmark score
3DMark Fire Strike Graphics test score
GPU base clock
RAM
Memory Bandwidth

Passmark test score

Sapphire HD 7790 Dual-X OC: 3001
AMD Radeon HD 6870: 2174

3DMark Fire Strike Graphics Score

Sapphire HD 7790 Dual-X OC: 4205
AMD Radeon HD 6870: 3090

GPU base clock

Sapphire HD 7790 Dual-X OC: 1075 MHz
AMD Radeon HD 6870: 900 MHz

RAM

Sapphire HD 7790 Dual-X OC: 1 GB
AMD Radeon HD 6870: 1 GB

Memory bandwidth

Sapphire HD 7790 Dual-X OC: 102. 4 GB/s
AMD Radeon HD 6870: 134.4GB/s

Description

The Sapphire HD 7790 Dual-X OC graphics card is based on the GCN 2.0 architecture. AMD Radeon HD 6870 based on TeraScale 2 architecture. The first one has 2080 million transistors. The second is 1700 million. The Sapphire HD 7790 Dual-X OC has a transistor size of 28 nm versus 40.

The base clock frequency of the first video card is 1075 MHz versus 900 MHz for the second.

Let’s move on to memory. Sapphire HD 7790 Dual-X OC has 1 GB. AMD Radeon HD 6870 has 1 GB installed. The bandwidth of the first video card is 102.4 Gb / s versus 134.4 Gb / s of the second.

FLOPS of Sapphire HD 7790 Dual-X OC is 1.85. AMD Radeon HD 6870 2.1.

Moves to benchmark tests. In the Passmark Sapphire HD 7790 Dual-X OC benchmark, it scored 3001 points. But the second card is 2174 points. In 3DMark, the first model scored 4205 points. The second 3090 points.

For interfaces. The first video card is connected using PCIe 3.0 x16. The second is PCIe 2.0 x16. Sapphire HD 7790 Dual-X OC graphics card has Directx version 12. AMD Radeon HD 6870 graphics card has Directx version 11.

Why Sapphire HD 7790 Dual-X OC is better than AMD Radeon HD 6870

Passmark score 3001 vs 2174, 38% higher
3DMark Fire Strike Graphics test score 4205 vs 3090 , up 36%
GPU base clock 1075 MHz vs 900 MHz, 19% higher
Effective memory speed 6400 MHz vs. 4200 MHz, 52% higher
GPU memory frequency 1600 MHz vs. 1050 MHz, 52% more
Thermal Dissipation (TDP) 85 W vs 151 W, -44% less

Comparison of Sapphire HD 7790 Dual-X OC and AMD Radeon HD 6870: highlights 3

GPU base clock

GPU (GPU) is characterized by a high clock frequency.

1075MHz

max 2457

Average: 1124.9MHz

900MHz

max 2457

Average: 1124. 9 MHz

GPU memory frequency

This is an important aspect calculating memory bandwidth

1600MHz

max 16000

Average: 1468 MHz

1050MHz

max 16000

Average: 1468 MHz

FLOPS

The measurement of processing power of a processor is called FLOPS.

1.85TFLOPS

max 1142.32

Average: 53 TFLOPS

2.1TFLOPS

max 1142.32

Average: 53 TFLOPS

RAM

RAM in graphics cards (also known as video memory or VRAM) is a special type of memory used by a graphics card to store graphics data. It serves as a temporary buffer for textures, shaders, geometry, and other graphics resources that are needed to display images on the screen. More RAM allows the graphics card to work with more data and handle more complex graphic scenes with high resolution and detail.
Show all

1GB

max 128

Average: 4. 6 GB

1GB

max 128

Average: 4.6 GB

Number of PCIe lanes

The number of PCIe lanes in graphics cards determines the speed and bandwidth of data transfer between the graphics card and other computer components through the PCIe interface. The more PCIe lanes a video card has, the more bandwidth and ability to communicate with other computer components.
Show all

Pixel Rendering Rate

The higher the pixel rendering rate, the smoother and more realistic the graphics and movement of objects on the screen will be.
Show all

17 GTexel/s

max 563

Average: 94.3Gtexel/s

29 GTexel/s

max 563

Average: 94.3Gtexel/s

TMUs

Responsible for texturing objects in 3D graphics. TMU provides textures to the surfaces of objects, which gives them a realistic look and detail. The number of TMUs in a video card determines its ability to process textures. The more TMUs, the more textures can be processed at the same time, which contributes to better texturing of objects and increases the realism of graphics.
Show all

max 880

Average: 140.1

max 880

Average: 140.1

ROPs

Responsible for the final processing of pixels and their display on the screen. ROPs perform various operations on pixels, such as blending colors, applying transparency, and writing to the framebuffer. The number of ROPs in a video card affects its ability to process and display graphics. The more ROPs, the more pixels and image fragments can be processed and displayed on the screen at the same time. A higher number of ROPs generally results in faster and more efficient graphics rendering and better performance in games and graphics applications.
Show all

max 256

Average: 56.8

max 256

Average: 56. 8

Number of shading blocks

The number of shader blocks in video cards refers to the number of parallel processors that perform computational operations in the GPU. The more shader units in the video card, the more computing resources are available for processing graphics tasks.
Show all

896

max 17408

Mean value:

1120

max 17408

Mean value:

Processor cores

The number of processor cores in a video card indicates the number of independent computing units capable of performing tasks in parallel. More cores allow for more efficient load balancing and more graphics processing, leading to improved performance and rendering quality.
Show all

max 220

Mean value:

max 220

Mean value:

L2 cache size

Used to temporarily store data and instructions used by the graphics card when performing graphics calculations. A larger L2 cache allows the graphics card to store more data and instructions, which helps speed up the processing of graphics operations.
Show all

256

512

Texture Size

A certain number of textured pixels are displayed on the screen every second.
Show all

60.2 GTexels/s

max 756.8

Average: 145.4 GTexels/s

50.4 GTexels/s

max 756.8

Average: 145.4 GTexels/s

Architecture name

GCN 2.0

TERASCALE 2

The name of the graphic processor

Bonaire

Barts

memory capacity

is a speed with which the device saves or reads information.

102.4GB/s

max 2656

Average: 257.8 GB/s

134.4GB/s

max 2656

Average: 257.8 GB/s

Effective memory speed

The effective memory clock is calculated from the size and baud rate of the memory. The performance of the device in applications depends on the clock frequency. The higher it is, the better.
Show all

6400MHz

max 19500

Average: 6984.5 MHz

4200MHz

max 19500

Average: 6984.5 MHz

RAM

1GB

max 128

Average: 4.6 GB

1GB

max 128

Average: 4.6 GB

GDDR Memory Versions

Latest GDDR memory versions provide high data transfer rates to improve overall performance
Show all

Mean: 4. 9

Mean: 4.9

Memory bus width

A wide memory bus indicates that it can transfer more information in one cycle. This property affects the performance of the memory as well as the overall performance of the device’s graphics card.
Show all

128bit

max 8192

Average: 283.9bit

256bit

max 8192

Average: 283.9bit

Crystal size

The physical dimensions of the chip that houses the transistors, microcircuits, and other components required for the operation of the graphics card. The larger the chip size, the more space the GPU takes up on the graphics card. Larger die sizes can provide more computing resources, such as CUDA cores or tensor cores, which can lead to increased performance and graphics processing capabilities.
Show all

160

max 826

Average: 356.7

255

max 826

Average: 356. 7

Generation

A new generation of graphics card usually includes improved architecture, higher performance, more energy efficient use, improved graphics capabilities and new features.

Southern Islands

Northern Islands

Manufacturer

TSMC

PSU Wattage

When choosing a power supply for your graphics card, consider the graphics card manufacturer’s power requirements as well as other computer components.
Show all

250

max 1300

Mean value:

450

max 1300

Mean value:

Year of manufacture

2013

max 2023

Mean value:

2010

max 2023

Mean value:

Heat dissipation (TDP)

Heat dissipation requirement (TDP) is the maximum amount of energy that can be dissipated by the cooling system. The lower the TDP, the less power will be consumed.
Show all

85W

Average value: 160 W

151W

Average value: 160 W

Process technology

The small size of the semiconductor means it is a new generation chip.

28 nm

Average: 34.7 nm

40 nm

Average: 34.7 nm

Number of transistors

The higher the number, the more powerful the processor is

2080 million

max 80000

Average: 7150 million

1700 million

max 80000

Average: 7150 million

PCIe version

Considerable speed is provided by the expansion card used to connect the computer to peripherals. The updated versions have impressive throughput and provide high performance.
Show all

Average: 3

Purpose

Desktop

The OpenGL version

OpenGL provides access to the graphics card’s hardware capabilities for displaying 2D and 3D graphics objects. New versions of OpenGL may include support for new graphical effects, performance optimizations, bug fixes, and other improvements.
Show all

4.6

Mean value:

4.4

Mean value:

DirectX

Used in demanding games providing enhanced graphics

max 12.2

Mean: 11.4

eleven

max 12.2

Mean: 11.4

Shader model version

The higher the shader model version in the video card, the more functions and possibilities are available for programming graphic effects.
Show all

6.3

max 6.7

Mean: 5.9

max 6.7

Mean: 5.9

HDMI output

HDMI output allows you to connect devices with HDMI or mini HDMI ports. They can transmit video and audio to the display.

Yes

HDMI version

The latest version provides a wide signal transmission channel due to the increased number of audio channels, frames per second, etc.
Show all

1.4

max 2.1

Mean: 1.9

1.3

max 2.1

Mean: 1.9

DVI outputs

Allows connection to a display using DVI

Mean: 1.4

Number of HDMI sockets

The more there are, the more devices can be connected at the same time (for example, game/TV type consoles)
Show all

Average: 1.1

mini-DisplayPort

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

Mean: 2.1

Interface

PCIe 3.0 x16

PCIe 2.0 x16

HDMI

A digital interface that is used to transmit high definition audio and video signals.
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Yes

Passmark Test Score

The Passmark Video Card Test is a program for measuring and comparing graphics system performance. It conducts various tests and calculations to evaluate the speed and performance of a graphics card in various areas.
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3001

max 30117

Average: 7628.6

2174

max 30117

Average: 7628.6

3DMark Fire Strike Graphics Test Score

It measures and compares a graphics card’s ability to handle high-resolution 3D graphics with various graphic effects. The Fire Strike Graphics test includes complex scenes, lighting, shadows, particles, reflections, and other graphical effects to evaluate the graphics card’s performance in gaming and other demanding graphics scenarios.
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4205

max 51062

Average: 11859.1

3090

max 51062

Average: 11859.1

FAQ

How does the Sapphire HD 7790 Dual-X OC perform in benchmarks?

Passmark Sapphire HD 7790 Dual-X OC scored 3001 points. The second video card in Passmark scored 2174 points.

What is the FLOPS of video cards?

FLOPS Sapphire HD 7790 Dual-X OC is 1.85 TFLOPS. But the second video card FLOPS is 2.1 TFLOPS.

What is the energy consumption?

Sapphire HD 7790 Dual-X OC 85 Watt. AMD Radeon HD 6870 151 Watt.

How fast are Sapphire HD 7790 Dual-X OC and AMD Radeon HD 6870?

Sapphire HD 7790 Dual-X OC operates at 1075 MHz. In this case, the maximum frequency reaches No data MHz. The clock base frequency of the AMD Radeon HD 6870 reaches 900 MHz. In turbo mode it reaches N/A MHz.

What kind of memory do graphics cards have?

Sapphire HD 7790 Dual-X OC supports GDDR5. 1 GB of RAM installed. The throughput reaches 102.4 GB/s. AMD Radeon HD 6870 works with GDDR5. The second one has 1 GB of RAM. Its throughput is 102.4 GB/s.

How many HDMI connectors do they have?

Sapphire HD 7790 Dual-X OC has 1 HDMI output. AMD Radeon HD 6870 is equipped with 1 HDMI outputs.

Which power connectors are used?

Sapphire HD 7790 Dual-X OC uses No data.