At this point, one must give credit to AMD for their marketing program for the Radeon RX Vega. The company has opted to drip feed information over many months, and as a result this has kept the public interested in the architecture and consumer RX Vega cards. Since it was by name back in the spring of 2016, we’ve had architecture previews, product teasers, and even a new Frontier Editions to tide us over.  Suffice it to say, there’s a great deal of fascination in finally seeing the products AMD has been beating the drums about for so long.

To that end, there’s good news today and there’s bad news today. In the interest of expediency, I may as well start with the bad news: today is not the launch day for the Radeon RX Vega. In fact, only right before this embargo expired did AMD even announce a launch date: August 14th. So for reviews, performance analyses, and of course purchasing, everyone will have to hold on just a bit longer.

The good news then is that even if today isn’t the Radeon RX Vega launch, AMD is finally making significant progress towards it by announcing the cards, the specifications, and the pricing. Gamers may not be able to buy the cards quite yet, but everyone is going to have some time to size up the situation before the proper launch of the cards next month. Overall this situation is very similar to the unveiling of the Radeon R9 290 series, where AMD announced the cards at a product showcase before launching them the following month.

So without further ado, let’s dive into the Radeon RX Vega family of cards and their specifications.

AMD Radeon RX Series Specification Comparison
  AMD Radeon RX Vega 64 Liquid AMD Radeon RX Vega 64 AMD Radeon RX Vega 56 AMD Radeon R9 Fury X
Stream Processors 4096
(64 CUs)
4096
(64 CUs)
3585
(56 CUs)
4096
(64 CUs)
Texture Units 256 256 224 256
ROPs 64 64 64? 64
Base Clock 1406MHz 1247MHz 1156MHz N/A
Boost Clock 1677MHz 1546MHz 1471MHz 1050MHz
Memory Clock 1.89Gbps HBM2 1.89Gbps HBM2 1.6Gbps HBM2 1Gbps HBM
Memory Bus Width 2048-bit 2048-bit 2048-bit 4096-bit
VRAM 8GB 8GB 8GB 4GB
Transistor Count 12.5B 12.5B 12.5B 8.9B
Board Power 345W 295W 210W 275W
(Typical)
Manufacturing Process GloFo 14nm GloFo 14nm GloFo 14nm TSMC 28nm
Architecture GCN 5 GCN 5 GCN 5 GCN 3
GPU Vega 10 Vega 10 Vega 10 Fiji
Launch Date 08/14/2017 08/14/2017 08/14/2017 06/24/2015
Launch Price $699* $499/599* $399/499* $649

All told, AMD will be releasing 3 different RX Vega cards. All 3 cards are based on the same GPU, Vega 10, which powers the already released Radeon Vega Frontier Edition. So if you’re familiar with that card, then you should have an idea of what to expect here.

The top of AMD’s lineup is the Radeon RX Vega 64 Liquid Cooled Edition. This is a fully enabled Vega 10 card and it has the highest clockspeeds and highest power requirements of the stack. All told, this is 64 CUs, 64 ROPs, boosting to 1677MHz, and paired with 8GB of HBM2 memory clocked at 1.89Gbps. Typical board power for the card is rated at 345W. To cool such a card, you of course will want liquid cooling, and living up to the name the card, AMD has included just that, thanks to a pump and 120mm radiator.

The second member of AMD’s lineup is the shorter-named vanilla Radeon RX Vega 64. Unlike its liquid cooled predecessor, this is a traditional blower-type air cooled card. And for the purposes of AMD’s product stack, the company is treating the vanilla Vega 64 as the “baseline” card for the Vega 64 family. This means that the company’s performance projections are based on this card, and not the higher-clocked liquid cooled card.

The vanilla Vega 64 utilizes the same fully enabled Vega 10 GPU, with 64 CUs and 64 ROPs. The card’s reduced cooling capacity goes hand-in-hand with slightly lower clockspeeds of 1247MHz base and 1546MHz boost. Paired up with the Vega GPU itself is the same 8GB of HBM2 as on the liquid cooled card, still running at 1.89Gbps for 484GB/sec of memory bandwidth. Finally, this card ships with a notably lower TBP than the liquid cooled card, bringing it down by 50W to 295W.

Meanwhile, unlike any of the other cards in the RX Vega family, the Vega 64 will come in two shroud design options. AMD’s reference shroud is a plastic/rubber design similar to what we saw on the reference Radeon RX 480 launched last year. AMD will also have a “limited edition” version of the card with the same hardware specifications, but replacing the rubber shroud with a brushed aluminum shroud, very similar to the one found on the Vega Frontier Edition. Though it’s important to note that the only difference between these two cards is the material of the shroud; the cards are otherwise identical, PCBs, performance, cooling systems, and all.

On that note, AMD has only released a limited amount of information on the cooler design of the Vega 64, which is of particular interest as it’s an area where AMD struggled on the R9 290 and RX 480 series. We do know that the radial fan is larger, now measuring 30mm in radius (60mm in diameter). The fan in turn is responsible for cooling a heatsink that’s attached to the Vega 10 GPU + memory package via a vapor chamber, a typical design choice for high performance, high TDP video cards.

Finally, the last member of the RX Vega family is the Radeon RX Vega 56. The obligatory cut-down member of the group, this card gets a partially disabled version of the Vega 10 GPU with only 56 of 64 CUs enabled. On the clockspeed front, this card also sees reduced GPU and memory clockspeeds; the GPU runs at 1156MHz base and 1471MHz boost, while the HBM2 memory runs at 1.6Gbps (for 410GB/sec of memory bandwidth). Following the traditional cut-down card model, this lower performing card is also lower power – and quite possibly the most power efficient RX Vega card – with a 210W TDP, some 85W below the Vega 64. Meanwhile, other than its clockspeed the card’s HBM2 memory is untouched, shipping with the same 8GB of memory as the other RX Vega members.

Moving on, perhaps the burning question for many readers now that they have the specifications in hand is expected performance, and this is something of a murky area. AMD has published some performance slides for the Vega 64, but they haven’t taken the time to extensively catalog what they see as the competition for the card and where the RX Vega family fits into that. Instead, what we’ve been told is to expect the Vega 64 to “trade blows” with NVIDIA’s GeForce GTX 1080.

In terms of numbers, the few numbers that the company has published have focused on minimum framerates over average framerates, opting to emphasize smoothness and the advantage they believe to have over the aforementioned GTX 1080. As always, competitive numbers should be taken with a (large) grain of salt, but for the time being this is the best guidance we have on what to expect for the RX Vega family’s performance.

Otherwise for the Vega 64 Liquid and Vega 56, we don’t have any other performance figures. Expect the former to outperform the air cooled Vega 64 – though perhaps not massively – while the Vega 56 will come in notably lower.

Buying RX Vega: Prices & Bundles
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  • fanofanand - Wednesday, August 2, 2017 - link

    it just shows the rate of advancement has slowed. Reply
  • Dug - Monday, July 31, 2017 - link

    I would of gladly bought this bundle if they offered the Samsung C32HG70.
    Which I find much more appealing for gaming than ultrawide.
    Reply
  • eva02langley - Monday, July 31, 2017 - link

    Never seen so much hate for a product not even released and benchmarked.

    I will wait for the review before judging anything. People to tend the effect of drivers and architectures. Nobody take into account HBM 2 and it could be way more important than what people believed.

    Once again, I only see nVidia fanboys burning their banners and going to war.
    Reply
  • Tewt - Monday, July 31, 2017 - link

    Agree and only Nvidia can get away with a large TDP. Anytime AMD releases something, somehow its OMG lets fry some bacon, when Nvidia does it the response is puh-leez what's an extra $20 a year.

    Regardless, I'm very happy with my RX 470.
    Reply
  • madwolfa - Monday, July 31, 2017 - link

    And when was it, 2010? We're in 2017, dude. Can't release hot shit liek that in this day. Reply
  • JasonMZW20 - Monday, July 31, 2017 - link

    It seems GCN's static partitioning of CUs/TMUs/ROPs will need to give way to something more efficient and dynamic; I think GCN 5 is the last of its line. However, Nvidia achieves relatively good TBP by offloading some functions to the CPU. The selling point looks good though, as it's so much lower. Overall total system draw may not be too dissimilar.

    Any new architecture will need to incorporate a very large L2 cache, not unlike Pascal, and even on the CPU front, Ryzen; the render back-ends on Vega are L2 clients now, but I don't have data on the size of L2 cache on Vega 10. That takes up precious die-space, so what will get the axe? Hardware scheduling? Perhaps nothing at all? Moving to 7nm will free up some of that burden. We already know that the not-too-distant future of GPUs is MCM (multi-chip modules), just like CPUs. It'll be interesting to see what solutions transpire when the time comes.

    AMD targeted Vega 10 for 225w. That has ballooned to 295w (air) and 345w (water). So, I think GCN wasn't designed, at the very beginning, with high-clocks in mind. A whole new rethink will need to be done for Navi to take the fight to Nvidia's Volta and future architectures.
    Reply
  • CiccioB - Monday, July 31, 2017 - link

    The fact is that GCN is performing so poorly in gaming that AMD needs to clock it up a lot to get some decent performances for the used silicon. And that goes against thermal efficiency, of corse. Reply
  • Ananke - Monday, July 31, 2017 - link

    AMD is using a ring topology, and NVidia was two-way bus, I think. AMD inherited that from co-work with IBM fifteen years ago, and from ATI acquisition. Essentially, AMD's architecture is more like a supercomputers type with ability to transfer large data blocks, and NVidia is relying on cheaper narrow bus with compression, decompression and data predictions, but can achieve higher clock speeds...
    AMD missed to take on board software developers, NVidia popularized CUDA meanwhile, although for heavy computations AMD would be probably better, hence the crypto- currency preference to run better on AMD since the days of bitcoin, SETI and so on.
    Considering so many foreign investors with material influence, I don't think AMD stands a chance outside the consumer market - from defense security point is a no go. I wish them luck , and I buy AMD for my gaming hobby, but realistically, they are not part of the big technology scene anymore.
    Reply
  • Oxford Guy - Monday, July 31, 2017 - link

    "they are not part of the big technology scene anymore."

    Did you sleep and miss Ryzen, Thread Ripper, and Epyc?
    Reply
  • Oxford Guy - Monday, July 31, 2017 - link

    Vulkan, which appears to be mainly an offshoot of Mantle, also has finally given Linux the ability to fully compete with DirectX. Reply

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