Radeon rx vega 56 desktop graphics cards


Even though the RX Vega 56 is around $300 now, it still loses out to lớn the more affordable GTX 1660 Ti


AMD Radeon RX Vega 56 specs

There’s not a huge difference between the GPUs at the heart of the top-kết thúc RX Vega 64 & this lower-caste RX Vega 56. As the name suggests, the second-tier thẻ has 56 compute units (CUs) compared with the 64 CU count of the higher-spec thẻ. That means AMD has jammed 3,584 Gcông nhân cores into lớn the RX Vega 56 instead of the previous card’s 4,096 GCN cores.

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Other than that it’s purely a case of some tweaked power settings and lower clockspeeds – everything else is identical, down lớn the cooling kiến thiết. That means we’re still talking about 8GB of HBM2 video memory & a 2,048-bit bus. It’s the same on-die configuration that makes the Vega 10 GPU a 486mm2 mammoth (the GP102 used in the GTX 1080 Ti is just 314mm2 for comparison) with 12.5bn transistors inside it.

RX Vega 64RX Vega 56RX 580GTX 1080 Ti
GPUAMD Vega 10AMD Vega 10AMD Polaris 20Nvidia GP102
ArchitectureGCN 4.0GCN 4.0GCN 4.0Pascal
Lithography14nm FinFET14nm FinFET14nm FinFET16nm FinFET
Die size486mm2486mm2232mm2314mm2
Base clockspeed1,247MHz1,156MHz1,257MHz1,480MHz
Boost clockspeed1,546MHz1,471MHz1,340MHz1,645MHz
Stream Processors4,0963,5842,3043,584
Texture units256256144224
Memory Capacity8GB HBM28GB HBM28GB GDDR511GB GDDR5X
Memory bus2,048-bit2,048-bit256-bit352-bit

There’s no liquid-chilled version of the RX Vega 56, nor are there any super-sexeh Silver Shroud variants. From the looks of things, AMD only made maybe five of either anyway, và I think those just went out lớn friends and family…

In terms of the actual Vega GPU architecture, we’ve sầu gone into detail about what AMD’s engineers have sầu been trying to create in our RX Vega 64 đánh giá. Essentially, they’re calling it their broadest architectural update in five years which is when AMD unleashed the original Graphics Core Next (GCN) design – và it brings with it some interesting new features.

One of which is the Infinity Fabric interconnect, binding the GPU with all the other components in the chip, making it a more modular architecture than previous generations. It’s also the key factor in making multi-GPU packages in the future. There’s also the new compute unit và AMD’s high-bandwidth cađậy controller (HBCC) too, offering the promise of the tech improving as more developers start taking advantage of it.


AMD Radeon RX Vega 56 benchmarks


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AMD Radeon RX Vega 56 performance

The big challenge for the RX Vega 56 – outside of trying khổng lồ magic up affordable stock for people to actually buy – is lớn push past the similarly priced Nvidia competition. Just as the RX Vega 64 was supposedly priced to go head-to-head with the GTX 1080, the RX Vega 56 was released into the wild with the GTX 1070 in its sights. Unfortunately Nvidia hit back with theGTX 1070 Tiand more recently the GTX 1660 Ti.

Like the RX Vega 64’s attempts to lớn overthrow the GTX 1080,the Vega 56 struggles against its targets. As we said about the flagship Vega GPU, it’s an architecture which seems to have sầu been primarily designed for a gaming future that’s yet to lớn have been created. As such, it’s rather lacklustre in its legacy gaming performance.

With games built using the last-ren DirectX 11 API the second class Vega is left trailing in the wake of the GTX 1070, & that means it’s off the pace against the lathử nghiệm GTX Turing cards too. But when you start khổng lồ bring in tests based around the newer DirectX 12, or Vulkan, instruction sets, Vega’s modern architectural thiết kế allows it to lớn occasionally take the lead.

Unfortunately, despite DX11 now being very much a legacy API, with DX12 being over a year old, the majority of PC games are still being released using the older system. And that means for the majority of PC games that come out over the next six months, at least, the GTX 1660 Ti is likely khổng lồ retain that performance advantage.

Granted, Vega’s performance improvements in DX12 & Vulkan are encouraging,ifthey ever become the dominant APIs, but right now anyone lucky enough to be able to lớn find the RX Vega 56 for a decent price is still going lớn be paying the same money for a thẻ that struggles to beat a smaller, more efficient, GPU in pretty much every game that’s in their Steam library.

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That’s not the only competition for the RX Vega 56, however, as there’s also the small matter of fratricide. As is its wont, despite the $100 price difference in their relative sầu SEPhường, AMD hasn’t made sweeping changes khổng lồ the core configuration of the two Vega variants. Essentially, the RX Vega 56 is simply operating with 12.5% fewer cores, yet in performance terms is only ever around 7-10% slower.

Yeah, Vega’s weird.


AMD Radeon RX Vega 56 verdict

The overall design of the Vega architecture seems khổng lồ have sầu been about laying a marker in the s&, defining a branching point for future generations ofAMD’s GPU công nghệ. It’s sacrificed legacy gaming performance for the promise of future applications of its smart-looking, though largely unused, feature set. The little extras the Vega architecture has baked inlớn it look like they could have sầu been genuinely game-changing… but only in some alternative timeline that never came to lớn pass.

If it was guaranteed that the HBCC & Rapid Packed Math shenanigans were going to lớn be employed across the board, and not just by AMD best-buds Bethesdomain authority, then the Radeon tech would definitely have sầu been the one to go for over the old-school Nvidia thiết kế.

Wolfenstein II: The New Colossus has shown some impressive Vega performance in the face of the GTX 1080 competition, with AMD’s traditional Vulkan speed-wins in the low-màn chơi API. But Vega is showing greater gains than the Polaris architecture, which would indicate there is something to the Rapid Packed Math stuff.

If you were spending around $300 on a graphics card today it would still be difficult to lớn make the Radeon recommendation. It’s arguably the more advanced architecture, but in raw performance terms the smaller, slightly cheaper, more efficient Nvidia GTX Turing GPU is likely lớn get you higher frame rates in more of the games you’re playing at the moment.

AMD & its partners are pricing Vega as aggressively as it can this late in its life, but unfortunately the price of HBM2 is a big sticking point.Luckily the end is nigh for Vega, forget the 7nm Radeon VII, we’ve got the new AMD Navi architecture coming before the kết thúc of September, and that’s promising serious mainstream graphics card competition again.

Still, I liked what AMD was trying to vị with Vega, but sacrificing current performance for the vague chance of higher frame rates in an alternative sầu future was just too much of an ask for most of us PC gamers.

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AMD Radeon RX Vega 56

The Vega 56 should be the price/performance anh hùng of AMD"s top GPU architecture, but it"s pricing itself out of the running, with gaming frame rates well short of the competition.


Updated: May 15, 2019

Former hardware editor for whom we will always have sầu a soft spot. Dave has been personally và professionally breaking PC hardware since, oh, before you were born. He loves kittens, GPUs, and long evenings spent battling other people"s networking problems.

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