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

Written by Michael Larabel in Linux Gaming on 20 February 2021 at 01:15 PM EST. Page 2 of 2. 33 Comments.
Portal 2 Vulkan OpenGL Ubuntu Linux Benchmarks

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.

Portal 2 Vulkan OpenGL Ubuntu Linux Benchmarks

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.

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Michael Larabel

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via