Intel's Arc GPU performance on Linux has improved greatly since the early days of the new architecture, but improvements are still being made via updates to the GPU drivers. The latest performance boost comes by way of the addition of frame buffer compression in the DXVK translation layer for Direct3D 8, 9, 10, and 11 games. The new patch comes by way of Mesa 26.3-devel, a new update to the open-source GPU driver stack, and it brings performance improvements previously seen in the VKD3D for DX12 games.

Frame buffer compression is a Linux kernel feature that aims to save memory bandwidth and power consumption by compressing the frame buffer and reducing the amount of memory used by the display. At the time of writing, Mesa 26.3-devel can be downloaded from the Mesa Git, but it, along with global frame buffer compression via DXVK, is expected to land in November when the new version of Mesa ships in the stable branch. Performance improvements, as noted in the merge request, are notable but not necessarily earth-shattering, ranging from 0.53% to just over 5%.

According to test results in the Mesa Git merge request, Intel's Battlemage GPUs saw the following performance improvements in DX11:

• Shadow of the Tomb Raider: +5.26%
• Total War: Warhammer 3: +4.62%
• Total War: Pharoah: +2%
• God of War: -0.5%

On Panther Lake with an unspecified Xe3 iGPU:

• Shadow of the Tomb Raider: +4.85%
• Total War: Warhammer: +2.6%
• Total War: Pharoah: +1.63%
• Cities Skylines 2: +0.56%
• Borderlands 3: +0.5%
• Mount and Blade 2: -0.58%

Results clearly vary by game, but regressions are minimal, and a 5% performance bump may be enough to bump a game up to just above 60 FPS. There are also no results for 1% and 0.1% lows or frame times, which are arguably more important metrics for perceived smoothness. However, Linux gaming often advances with small performance bumps like this.