AMD's new Radeon RX Vega 64 can beat NVIDIA's best GeForce GTX 1080 Ti in some scenarios, where in multi-GPU configurations the RX Vega 64 begins competing against the GTX 1080 Ti in 8K... and now the same can be said for DX12 and Forza 7.
The lead that RX Vega 64 has is short lived, as it only beats the GTX 1080 Ti in Forza 7 in DX12 at 1080p and 1440p... because at 4K the GTX 1080 Ti reigns supreme once again. ComputerBase.de used an Intel Core i7-6850K overclocked to 4.3GHz, 16GB of DDR4-3000, and Forza 7 in DX12. As for drivers, the site used Crimson ReLive 17.9.3 and the GeForce 385.69 drivers.
Forza 7 was run in DX12 mode with 8x MSAA enabled, which really stresses out the cards - so it's interesting to see Radeon RX Vega 56 beating the GTX 1070/1080 and even the GTX 1080 Ti at 1080p. Even at 1440p, the RX Vega 56 competes against the GTX 1080 and beats it, while it's just 3FPS from the GTX 1080 Ti.