Intel Core Ultra 9 285K "Arrow Lake" Linux Performance Up ~9% One Year Later At ~85% Power Use
Those wanting to dig through all 240+ benchmarks in full can find them via this result file for comparing the Linux launch-day performance of the Core Ultra 9 285K to now in November 2025 on Linux 6.18.
When taking the geometric mean of all the raw performance benchmark results, there was a healthy 9% improvement overall with the Linux software updates over the past year refining the Intel Arrow Lake desktop performance.
Equally exciting -- if not more so -- is a significant reduction in the average power consumption. Across the span of all the benchmarks conducted, back at launch this was around 136 Watts on average but now completed the benchmarks with a 116 Watt average. The peak CPU power use was 248 Watts at launch and a 252 Watt peak now with the latest Linux software and system BIOS for the ASUS motherboard. There has been continued work by Intel Linux engineers in better P/E core hybrid behavior within the kernel and other optimizations such as to Thermald that are helping with better power efficiency one year later for Arrow Lake.
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