A very interesting gaming benchmark has been offered up by the Russian website GameGPU. In one particular test, which involved the recently released third-person shooter World War Z, AMD dominated proceedings with even the Radeon RX Vega 56 managing to outpace a GeForce RTX 2080. However, there are a number of caveats involved that should be taken into consideration in regard to the very positive results for the red team.
The benchmark was run with two different APIs: DX11 Ultra and Vulkan. The screen resolution chosen for these particular results was 1920x1080 and the test system operated with an Intel Core i9-9900K. It’s also important to point out that World War Z has been developed for optimal performance with AMD Radeon hardware and the Vulkan API: AMD's recent Radeon Software Adrenalin 2019 Edition 19.4.2 driver offered sizeable performance boosts for World War Z players using a Radeon VII (up to 24% improvement) or RX Vega 64 (19%).
So AMD, in essence, does have a head start in this very specific benchmark. However, with the Radeon VII pushing out an average rate of 192 FPS (minimum 163 FPS), the RX Vega 64 LC managing 183 FPS, and the non-liquid-cooled RX Vega 64 offering up 169 FPS, at least it proves the optimization process has been a success. Of course, if you change the settings, there are different stories to tell.
For instance, Nvidia’s GeForce RTX 2080 Ti is the winner with DirectX 11, although the Radeon VII and RX Vega 64 LC still perform admirably. Changing the resolution settings to either 2560x1440 or 3840x2160 using the same API keeps the RTX 2080 Ti on top. In Vulkan at 2560x1440 the Radeon graphics solutions are back in the lead, but at the demanding 3840x2160 settings Nvidia’s top-end graphics card leapfrogs over the AMD competition.
Source(s)
GameGPU (in Russian)
HardwareSfera (in Spanish)