NVIDIA vs. Radeon Vulkan & OpenGL Performance With A Celeron, Pentium & Core i7

Dawn of War 3 with low quality settings at 1080p saw similar performance between the GTX 1060 and RX 580 when CPU bound by the Celeron and Pentium. With the Core i7 7700K, however, the GTX 1060 was about 8% faster.

But where things get interesting is looking at the Vulkan difference. For both the GTX 1060 and RX 580, the Vulkan performance was much better than OpenGL with the low-end Celeron and Pentium processors. But when using the Core i7 7700K, the Dow3 Vulkan performance was slightly lower with the NVIDIA card (88 vs. 92 FPS) while the Radeon Vulkan performance was much lower (85 vs. 66 FPS).

Here's a similar comparison with Dawn of War III when run with ultra image quality settings. Here the Vulkan performance was better than OpenGL on the NVIDIA side with the Celeron and Pentium while with the greater GPU workload, RADV was now slower than RadeonSI OpenGL when hitting the Pentium G4600.