OpenGL vs. Vulkan Performance For Portal 2 With Radeon Linux Graphics

At 2560 x 1440, the older GPUs like the RX 590 and RX Vega 56 didn't see much advantage from using Vulkan over OpenGL. However, with the newer and higher-end graphics cards there still was much uplift to enjoy with Vulkan. The Radeon RX 6800 series saw around 50% higher frame-rates still at 1440p when going from OpenGL to Vulkan.

At 4K the advantages of the Vulkan renderer continued diminishing while the higher-end Radeon RX 6800 series were still able to enjoy higher frame-rates with that DXVK-based rendering path. The Radeon RX 6800 was seeing about 15% higher frame-rates with Vulkan while the RX 6800 XT was 30% faster with Vulkan.

That's the initial look at the Portal 2 performance on Linux with the new Vulkan renderer. Stay tuned for plenty more benchmarks following the next update and incorporating various NVIDIA GPUs as well for comparison.