Windows 11 hurts AMD Ryzen performance even more than we thought
Windows 11 might have just had its Chernobyl moment. AMD and Microsoft already confirmed that the new operating system increases L3 cache latency by 3x on Ryzen CPUs, but it can actually be as much as 6x slower, according to independent testing. Cache latency can affect performance in many applications, including games.
Want even more big numbers to show how broken things are with Windows 11 on Ryzen? The benchmarks also show that Windows 10's L3 cache bandwidth can be up to 12x faster than when running on Windows 11, according to testing by Paul Alcorn of Tom's Hardware. Oof.
The bad news comes just after AMD and Microsoft jointly announced the 3x cache latency increase, which they said could reduce gaming performance in lighter-duty esports-style games by 15 …
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