Jan 09, 2023 19:00:00

AMD Radeon RX 7900 XT / 7900 XTX benchmark report in Linux environment is now available

AMD's graphics cards ``

Radeon RX 7900 XT '' and `` Radeon RX 7900 XTX '' were released on December 12, 2022. Phoronix, a PC-related news site, has published a performance review of these two types of graphics cards operating in a Linux environment.

AMD Radeon RX 7900 XTX + RX 7900 XT Linux Support & Performance Review - Phoronix
https://www.phoronix.com/review/rx7900xt-rx7900xtx-linux

The test environment is as follows. The Radeon RX 7900 series Linux driver system requirements are Linux 6.0 or newer, Mesa 22.2 or newer.

Kernel: Linux 6.0.9-060009-generic(x86_64), Linux 6.1.0-rc8-phx(x86_64), Linux 6.1.0-rc6-phx-drm-next-8dec(x86_64)
Motherboard: ASUS X670E HERO
CPU: AMD Ryzen 9 7950X → Ryzen 9 5950X
Memory: 16GB DDR5-6000 x 2, manufacturer unknown
SSD: WD_BLACK SN850 NVMe SSD

When running the benchmark, it seems that only about half of the expected performance was obtained at the time of Ryzen 9 7950X, but when changing to Ryzen 9 5950X, it was possible to measure the performance as expected. According to Phoronix, Zen 4's memory overclocking function 'AMD EXPO' seems to be affected, and it seems likely that there is a problem with SoC power adjustment.

The results of measuring the number of drawing frames per second (fps) when actually playing the game are as follows. The top three are RX 7900 XT and the bottom three are RX 7900 XTX. Orange is Linux 6.0, blue is Linux 6.1, green is Linux 6.1 (DRM_Next). A higher number indicates better performance.

' Grand Theft Auto V ', 3840 x 2160 pixels, image quality: High

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Shadow of the Tomb Raider ', 3840 x 2160 pixels, quality: High, antialiasing off

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Total War: Three Kingdoms ', 3840 x 2160 pixels, image quality: High, battle benchmark

HITMAN 3 , 3840 x 2160 pixels, Quality: Ultra. In HITMAN 3, Linux 6.1 (DRM_Next) caused a drawing error (described later), so it is not measured.

Quake II RTX 1.6 , 3840 x 2160 pixels, Global Illumination : Low, Denoise: On, Ray Tracing API: VK_KHR_ray_query

Quake II RTX 1.6, 3840 x 2160 pixels, Global Illumination: Low, Noise Reduction: Off, RX 7900XTX RX 7900XT, AMD Radeon's RX 6800 XT and RX 6800, and NVIDIA GeForce's RTX 3090・The following is a comparison with RTX 3080 Ti and RTX 3080. Above is the ray tracing API VK_KHR_ray_tracing_pipeline, below is VK_KHR_ray_query.

And the comparison of the number of drawing frames per second with benchmark software is as follows. A higher number indicates better performance.

Unigine Heaven , 3840×2160 pixels, fullscreen, renderer: OpenGL

Gravity Mark , 2560 x 1440 pixels, Renderer: OpenGL (top), Vulkan (bottom)

According to Phoronix, AMD Radeon Vulkan Driver (RADV) developed by Valve, Red Hat, Google, etc. had some drawbacks. For example, in 'Grand Theft Auto V', it seems that noise may occur as shown in the screen below.

In 'HITMAN 3', the following drawing error occurred on Linux 6.1 (DRM_Next). It seems that no error occurred on Linux 6.0 and Linux 6.1.

AMD Radeon's RX 7900 XT, RX 7900 XTX, RX 6800XT, RX 6800, Radeon VII, NVIDIA GeForce's RTX 3090, RTX 3080 Ti, RTX 3080, the GPU temperature during the review test was measured below. The RX 7900 XT is about 45 degrees to 60 degrees, and the 50% distribution is stable around 50 degrees. The RTX 7900 XTX has a higher minimum and maximum temperature than the RTX 7900 XT, and the 50% distribution exceeds 60 degrees.

Phoronix said, 'The Radeon RX 7900 series has debuted with arguably the most successful open source driver. There are still issues with some games and challenges such as ray tracing optimization with RADV, but much better than previous launches. Considering that RADV is also a driver developed outside of AMD, you can see that it works rather well, ”said Radeon RX 7900 series as a graphics card that can be used in the Linux environment. He said that there is no doubt that it is a GPU that can be recommended considering that optimization will progress in the future.