Vega 64 cu: AMD Radeon RX Vega 64 Specs

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AMD Radeon Vega RX 64 8GB Review — Tom’s Hardware

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Early Verdict

After many months of building anticipation, AMD is ready to show off Radeon RX Vega 64, and it’s…alright. Great 1440p performance and respectable 4K frame rates largely mirror Nvidia’s GeForce GTX 1080 at a similar price point. AMD is leaning hard on its FreeSync price advantage and support for features requiring developer support in future games.

Pros

• +

  Vega is here, finally

• +

  Performance generally similar to GeForce GTX 1080

• +

  Future-looking feature set could yield additional performance

• +

  FreeSync cost advantage

Cons

• —

  High power consumption

• —

  Cooling not handled as well as Vega Frontier Edition

• —

  Top-billed features await future developer support

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Introduction

AMD’s last high-end graphics card launch happened almost 26 months ago. Back then, the Radeon R9 Fury X went toe-to-toe with GeForce GTX 980 Ti and Titan X—the best Nvidia had to offer. And it kept getting better. Subsequent drivers optimized performance, while DirectX 12 helped game developers get more out of the Graphics Core Next Architecture.

Today’s official introduction of the Radeon RX Vega represents the company’s return to high-end gaming, so says AMD. But by its own admission, this isn’t going to be AMD battling for Nvidia’s performance crown. Rather, Radeon RX Vega 64 sets its sights on the performance and pricing of GeForce GTX 1080.

We already know most of what there is to know about Radeon RX Vega 64. AMD made sure of that with a carefully timed sequence of disclosures intended to keep enthusiasts buzzing about its next-gen graphics hardware. In case you missed any of that, check out AMD Teases Vega Architecture: More Than 200+ New Features, Ready First Half Of 2017 and AMD Radeon RX Vega 64: Bundles, Specs, And Aug. 14 Availability.

Today is when we see if the cliffhanger approach to marketing ends with gamers enjoying blissful satisfaction or the pangs of disappointment.

Specifications

Radeon RX Vega 64: At a Glance (Again)

Speeds and feeds are always good to recap, so borrowing from our earlier coverage:

Like the Radeon R9 Fury X’s Fiji processor, Radeon RX Vega 64 employs four shader engines, each with its own geometry processor and rasterizer.

Also similar to Fiji, there are 16 Compute Units per Shader Engine, each CU sporting 64 Stream processors and four texture units. Multiply all of that out and you get 4096 Stream processors and 256 texture units.

Clock rates are way up, though. Whereas Fiji topped out at 1050 MHz, a GlobalFoundries 14nm FinFET LPP process and targeted optimizations for higher frequencies allows the Vega 10 GPU on Radeon RX Vega 64 to operate at a base clock rate of 1247 MHz with a rated boost rate of 1546 MHz. Obviously, AMD’s peak FP32 specification of 12.66 TFLOPS is based on that best-case frequency. We typically use the guaranteed base in our calculations, though. Even then, 10.2 TFLOPS is still an almost 20% increase over Radeon R9 Fury X.

The liquid-cooled model steps those numbers up to a 1406 MHz base with boost clock rates as high as 1677 MHz. That’s an almost 13% higher base and ~8%-higher boost frequency, pushing AMD’s specified peak FP32 rate to 13.7 TFLOPS. You’ll pay more than just a $200 premium for the closed-loop liquid cooler, though. Board power rises from 295W on Radeon RX Vega 64 to the Liquid Cooled Edition’s 345W—a disproportionate 17% increase. Both figures exceed Nvidia’s 250W rating on GeForce GTX 1080 Ti, which isn’t even in Vega’s crosshairs.

Swipe to scroll horizontally

Model	Cooling Type	BIOS Mode	Power Profile
RX Vega 64	Power Saver	Balanced	Turbo
Air	Primary	165W	220W	253W
Secondary	150W	200W	230W
Liquid	Primary	198W	264W	303W
Secondary	165W	220W	253W

Speaking of power, our air-cooled sample comes with two BIOS files, and each of those BIOSes supports three power profiles. The primary BIOS at its Balanced power setting is accompanied by a 220W GPU power limit. Dropping to Power Saver cuts GPU power to 165W, while increasing it to Turbo raises the ceiling to 253W. Switching over to the secondary BIOS drops Power Saver to 150W, Balanced to 200W, and Turbo to 230W. We certainly appreciate the granular control AMD enables here, but recognize that most enthusiasts aren’t looking for a way to de-tune their $500 graphics card. Regardless, we’re planning a follow-up story to explore the effects of each setting on board power, performance, and acoustics.

Each of Vega 10’s Shader Engines sports four render back-ends capable of 16 pixels per clock cycle, yielding 64 ROPs. These render back-ends become clients of the L2, as we already know. That L2 is now 4MB in size, whereas Fiji included 2MB of L2 capacity (already a doubling of Hawaii’s 1MB L2). Ideally, this means the GPU goes out to HBM2 less often, reducing Vega 10’s reliance on external bandwidth. Since Vega 10’s clock rates can get up to ~60% higher than Fiji’s, while memory bandwidth actually drops by 28 GB/s, a larger cache should help prevent bottlenecks.

Incidentally, AMD’s graphics architect and corporate fellow Mike Mantor says all of the SRAM on Vega 10 adds up to more than 45MB. Wow. No wonder this is a 12.5-billion-transistor chip measuring 486 square millimeters. That’s more transistors than Nvidia’s GP102 in an even larger die.

Adoption of HBM2 allows AMD to halve the number of memory stacks on its interposer compared to Fiji, cutting an aggregate 4096-bit bus to 2048 bits. And yet, rather than the 4GB ceiling that dogged Radeon R9 Fury X, RX Vega 64 comfortably offers 8GB using 4-hi stacks (AMD’s Frontier Edition card boasts 16GB). An odd 1.89 Gb/s data rate facilitates a 484 GB/s bandwidth figure, matching what GeForce GTX 1080 Ti achieves using 11 Gb/s GDDR5X.

As an aside, AMD plans to make its Radeon RX Vega 56 derivative available on August 28th. That 210W card utilizes the same GPU and 8GB of HBM2, but has eight of its Compute Units disabled, eliminating 512 Stream processors and 32 texture units. It’ll also run at lower core and memory clock rates. Yet, AMD claims it should outperform GeForce GTX 1070 handily at a $400 price point. Our U.S. lab is in the process of testing Radeon RX Vega 56, and we coverage should follow in the days to come.

Look, Feel & Connectors

Image 1 of 2

AMD’s RX Vega 64 weighs in at 1066g, which makes it 16g heavier than the Frontier Edition. Its length is 26.8cm (from bracket to end of cover), its height is 10.5cm (from top of motherboard slot to top of cover), and its depth is 3.8cm. This makes it a true dual-slot graphics card, even though the backplate does add another 0.4cm to the back.

Both the cover and the backplate are made of black anodized aluminum, giving the card a cool and high-quality feel. The surface texture is achieved using simple cold forming that preceded the aluminum’s anodization. All of the screws are painted matte black. The red Radeon logo on the front is printed, and provides the only splash of color.

The top of the card is dominated by two eight-pin PCIe power connectors and the red Radeon logo, which lights up. There’s also a two-position switch that allows access to the aforementioned secondary BIOS optimized for lower power consumption and its corresponding driver-based power profiles. These make the card quieter, cooler, and, of course, a bit slower.

Image 1 of 2

The end of the card is closed and includes mounting holes that are a common sight on workstation graphics cards. The powder-coated matte black slot bracket is home to three DisplayPort connectors and one HDMI 2.0 output. There is no DVI interface, which was a smart choice since it allows for much better airflow. The slot bracket doubles as the exhaust vent, after all.

MORE: Best Graphics Cards

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PCI-E MSI Radeon RX Vega 64 (RX Vega 64 Air Boost 8G OC) (REDUCED) FROM REPAIR

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PCI-E Graphics Card MSI Radeon RX Vega 64 (RX Vega 64 Air Boost 8G OC) (REDUCED)

• Key features

  Powerful video accelerator. It reveals games well at maximum settings at HD and 2K resolution and at medium settings at 4K. The frequencies of the video core and video memory have been significantly increased.

  • Frequency

    1272
    MHz

  • Turbo frequency

    1575
    MHz

  • Process

    14
    nm

  • Video memory size

    8196
    MB

  • Memory frequency

    945
    MHz

  • Memory type

    HBM2

  • Video memory bus width

    2048
    bit

  • Interface

    PCI-E x16

  • Interface version

    3. 0

  • Maximum number of connected monitors

    4
    pcs

  • DirectX Version

    12.0

  • HDMI

    1
    pcs

  • DisplayPort

    3
    pcs

  • Cooling type

    Active

  • Maximum power consumption

    375
    W

  • Auxiliary power connectors

    8 pin + 8 pin

  • Video card length

    270
    mm

• Specifications MSI Radeon RX Vega 64 (RX Vega 64 Air Boost 8G OC) (REDUCED)

  • Main Specifications

  • GPU

    AMD RX Vega 64

  • Chip codename

    Vega 10

  • Video processor specification

  • Frequency

    1272
    MHz

  • Turbo frequency

    1575
    MHz

  • Process

    14
    nm

  • Number of transistors

    12500
    million

  • Kernel area

    486
    mm²

  • Video memory specification

  • Video memory size

    8196
    MB

  • Memory frequency

    945
    MHz

  • Memory type

    HBM2

  • Video memory bus width

    2048
    bit

  • Interface

  • Interface

    PCI-E x16

  • Interface version

    3. 0

  • Other features

  • Maximum number of connected monitors

    4
    pcs

  • CrossFire support

    Yes

  • Number of universal processors

    4096

  • Number of texture units

    256

  • Number of rasterization blocks

    64

  • DirectX Version

    12.0

  • OpenGL Version

    4.5

  • OpenCL version

    2.0

  • I/O interfaces

  • HDMI

    1
    pcs

  • Maximum resolution of HDMI ports

    4096×2160

  • DisplayPort

    3
    pcs

  • Maximum resolution of DisplayPort ports

    5120×2880

  • HDCP support

    Yes

  • Cooling

  • Cooling type

    Active

  • Food

  • Maximum power consumption

    375
    W

  • Auxiliary power connectors

    8 pin + 8 pin

  • Additional features

  • Video card length

    270
    mm

MSI Radeon RX Vega 64 (RX Vega 64 Air Boost 8G OC) (REDUCED) certified for sale in Russia.

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heavyweight with three power sockets

3DNews Technologies and IT market. Sapphire Radeon RX Vega 64 Nitro graphics card news: heavy… The most interesting in the reviews 11/14/2017 [18:15], Ivan Grudtsyn Non-reference Radeon graphics cards based on Vega 10 XT and Vega 10 XL chips seem to be ready to hit the market soon. We recently talked about an alternative version of the Radeon RX Vega 56 from XFX, but now it’s the turn of the Sapphire Radeon RX Vega 64 Nitro. The device, first of all, stands out for its dimensions. The length of its printed circuit board is about 21 cm, but a three-fan cooler adds another 11–12 cm. The thickness of the adapter is just over 5 cm, which corresponds to three expansion slots. According to the South Korean resource HWBattle, whose employees got a prototype Radeon RX Vega 64 Nitro, the retail version of the video card will be equipped with a holder or support. The dimensions of the novelty could hardly be reduced without compromising the cooling efficiency of the GPU and power system components. The pre-installed CO on copper heat pipes should be able to handle the overclocked Vega 10 XT core and give the card owner the opportunity to raise the frequencies even higher on their own. For the same purpose, three 8-pin PCI-E Power power connectors (up to 150 W per connector) are soldered on the board, which, together with the power contacts of the PCI-E x16 slot, can provide as much as 525 W for Sapphire Radeon RX Vega 64 Nitro components. The backlight of the cooler has at least three zones, but it is not clear yet whether it is configurable or not. The presence of a rear reinforcing plate in this case is more of a necessity than a desire to decorate the product. The diameter of the central fan is 85 mm, the outer ones are 95 mm There are four connectors for image output — a pair of DisplayPort 1.4 and HDMI 2.0b. Above them, the mounting plate is perforated for better heat dissipation. HWBattle lab has received a sample video card with AMD recommended frequencies 1247-1546/945(1890) MHz. Production copies of the Radeon RX Vega 64 Nitro promise to be more productive due to the factory overclocking of the GPU. Testing a sample without factory overclocking in 3DMark Despite the same frequency formula, the Radeon RX Vega 64 version from Sapphire outperformed that of AMD. The reason for this, most likely, was the more rare drawdown of the core frequency under load.