AMD's RX Vega 64 is 23% faster than Nvidia's GTX 1080 Ti in Forza 7

AMD Vega performance

In a surprising turn of events, AMD’s RX Vega graphics cards are showing incredible performance in Microsoft’s own Forza 7. With game-optimised drivers from both Nvidia and AMD, the RX Vega cards have been chomping through pixels as Raja Koduri himself intended them to, taking pole position from the GTX 1080 Ti.

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AMD’s RX Vega graphics cards have been struggling to really sink their teeth into the Nvidia lineup since launch, offering performance somewhere around GTX 1080 levels for AMD’s flagship RX Vega 64 card. Seemingly with a rope-a-dope from AMD, however, RX Vega cards are able to spread their wings in Microsoft’s DX12 Forza 7, even managing to top the charts above the all-powerful GTX 1080 Ti.

The results come from Computer Base, who were using a custom benchmark scenario on maximum graphical settings and 8x MSAA. Both drivers have been optimised for Forza 7, although either party may release updated drivers at launch.

Forza 7 PC

At 1080p resolution, neither of Nvidia and AMD’s top-end cards exactly struggle, but while AMD’s RX Vega 64 has been performing close to the GTX 1080 in most games, with Forza 7, the RX Vega 64 offers 32% higher frame rates. This architectural performance boost also puts the RX Vega 64 above the GTX 1080 Ti, with a 23% increase in fps.

The same goes for the RX Vega 56 at 1080p too, easily defeating its nearest opponent, the GTX 1070, with 38% greater fps. Surprisingly, the RX Vega 56 also vanquishes the GTX 1080 Ti in 1080p, with an 11% increase in fps.

Percentage increases tend to scale consistently, as the resolution is increased, between the RX Vega 64 and GTX 1080, with a 21% increase in fps for Vega 64 over its current generation sparring partner. At 4K, this lead is cut to 11%. On the other hand, the GTX 1080 Ti does regain traction at the highest res, stepping back into the number one spot with an 8% lead over the RX Vega 64.

Windows 7 won't get DirectX 12

Nvidia have confirmed to Computer Base that these results seem correct. No strange hardware or software bug seems to be affecting performance; Vega is seemingly coming into its own with this title, possibly making use of DX12 features to its advantage. We will, however, have to wait and see until Forza 7 launches tomorrow to confirm whether these results may be replicated on all cards.

Our own Forza 7 review - which will be published tomorrow - has been plagued with a host of problems, including missing track textures and stuttering. We’ve also found enabling V-Sync to cause more issues, despite the limited fps. These occurred with an old Core i7  processor and a GTX 1070 graphics card, although they may persist with other configurations. Once these bugs have been ironed out and performance is consistent across the board, benchmarking will be able to offer more concrete results.

Hopefully these Radeon performance increases will carry over to further DX12 titles, as the API tends to perform well on AMD cards. We may be seeing the first examples of AMD’s continued ‘fine wine’ approach - that is, improvements in performance will increase gradually as time goes on.

If all works out for AMD, and performance continues on a steady upward swing, Nvidia may be reaching for the big red button marked ‘Volta’ sooner than expected.

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Darksx avatardeksroning avatarFirerod avatarAnakhoresis avatarDave James avatarBadAssBradders avatar
Darksx Avatar
116
2 Months ago

Sorry, but Ill be taking this article with a very large grain of salt.

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deksroning Avatar
6
2 Months ago

A good precaution, however, when you take into account how much compute hardware is in Vega 64 vs 1080ti... along with new features that would likely increase performance...

Well, perhaps you should have a look at the professional software results before you write off Vega as a 'weakling' vs 1080ti:

https://techgage.com/article/a-look-at-amds-radeon-rx-vega-64-workstation-compute-performance/7/

Also, Vega was radically overvolted by AMD to increase yields which greatly increased power draw.

When the GPU is undervolted on stock clocks, Vega draws much less power (in line with nvidia's GPU's) and performance often goes up since thermal throttling is removed which allows Vega to reach and maintain its boost clocks.

Nvidia is essentially running on optimized voltages out the box... AMD does not.

Also, you cannot undervolt nvidia's GPU's without underclocking them as well since the voltages and clocks are tied.

So, undervolting Vega 56 and 64 simply reduces the amount of power delivered to the GPU on stock clocks... and AMD couldn't do this out the door due to having lower yields and no auto voltage tuning.

There's that, along with the fact that the GLOFO manuf. process AMD uses is more suited for lower clock speeds than higher ones.

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Firerod Avatar
17
2 Months ago

Nvidia has even confirmed that the results are accurate, the GTX cards are running into a bottleneck. Until they figured out what it is, the performance will stay at its current level.

1
Anakhoresis Avatar
610
2 Months ago

A friend of mine claimed that Forza 7 is used rapid packed math, but I can't find any confirmation for that.

1
Dave James Avatar
461
2 Months ago

Interesting. There's the potential that might explain the performance gap, but it seems MS haven't enabled RPM in the X Xbox X One X (X) so I'd guess Turn 10 wouldn't have gone to the trouble of adding it in to the PC version when it wouldn't get used in the console version.

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Anakhoresis Avatar
610
2 Months ago

I had to do a double take for your version of the console name, I enjoyed a hearty chortle afterwards. Thank you for that!

For the game though, Microsoft does seem to be putting more effort into the PC lately, plus since they created the base of the PC engine with Forza Apex, maybe the technical engineers had some spare time to play around with new ideas? Unless Nvidia cards are really experiencing a problem, just being DX12 doesn't seem like it makes sense because there are other DX12 titles and the discrepancy isn't near as large. Do you guys still have your test card? Would be interesting to see some comparison benchmarks of Forza: Apex to see if it's similar, maybe Halo 5: Forge and Halo Wars 2 as well.

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Dave James Avatar
461
2 Months ago

Both our Vega test cards are on their way back to the office at the moment, so I'm keen to have a play around with Forza myself.

It would also be super exciting if Wolfenstein turned up with a serious Vega performance delta thanks to RPM. Not to long to wait and see if there's some fine wine to drink!

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BadAssBradders Avatar
1
1 Month ago

I have this EXACT issue with Forza 7, missing textures, bright colours surround ground textures and some advertisement boards.

Sapphire Radeon RX VEGA 64 8GB HBM2 PCI-Express Graphics Card, running off my AMD Ryzen 5 Six Core 1600 3.60GHz, and 16gb RAM. Latest driver installed.

It feels like this is just an update issue? Hopefully, they will get it sorted because overall the card seems great.

1