Ubuntu Linux Squeezes ~20% More Performance Than Windows 11 On New AMD Zen 4 Threadripper

Written by Michael Larabel in Operating Systems on 21 November 2023 at 09:38 AM EST.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Slow. Ubuntu 23.10 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Medium. Ubuntu 23.10 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 1080p, Video Preset: Slow. Windows 11 Pro H2-23 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 1080p, Video Preset: Medium. Windows 11 Pro H2-23 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Very Fast. Ubuntu 23.10 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Super Fast. Ubuntu 23.10 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Ultra Fast. Ubuntu 23.10 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 1080p, Video Preset: Very Fast. Windows 11 Pro H2-23 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 1080p, Video Preset: Ultra Fast. Windows 11 Pro H2-23 was the fastest.

With the Kvazaar H.265 open-source video encoder it was interesting. When encoding at 1080p where there is last scalability with the high core counts, Windows 11 Pro did carry a noticeable advantage over Linux. But when dealing with 4K content, Ubuntu 23.10 easily led. Part of the advantage with Windows 11 at 1080p content may be due to AMD not yet having mainlined the AMD Preferred Core handling for the Linux kernel. AMD has been working on their Preferred Core support for the Linux kernel and to tie into its scheduler, which when that lands should help in the performance for single and lightly threaded workloads to help ensure they wind up on the best cores possible.

SVT-AV1 benchmark with settings of Encoder Mode: Preset 8, Input: Bosphorus 4K. Ubuntu 23.10 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 12, Input: Bosphorus 4K. Ubuntu 23.10 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 13, Input: Bosphorus 4K. Ubuntu 23.10 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 4, Input: Bosphorus 1080p. Ubuntu 23.10 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 8, Input: Bosphorus 1080p. Ubuntu 23.10 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 12, Input: Bosphorus 1080p. Ubuntu 23.10 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 13, Input: Bosphorus 1080p. Ubuntu 23.10 was the fastest.

With the Intel/AOMedia SVT-AV1 open-source AV1 encoder, Ubuntu 23.10 delivered the best performance across the board... Even for 1080p content. SVT-AV1 has long been the fastest CPU-based AV1 encoder around.


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