AMD Zen 4 CPUs To See Up To 20% Speedup In y-cruncher Benchmark Thanks To AVX-512
The popular y-cruncher benchmark for CPUs will soon be getting a major update which will allow AMD Zen 4 CPUs to deliver up to 20% higher performance thanks to AVX-512.
The author of the y-cruncher benchmark, Alexander Yee, announced in a tweet that the upcoming version of the benchmark will see a major boost for AVX-512 hardware, especially AMD's Zen 4 core which features support for AVX-512.
The CPU benchmarking community will hate me for this. But the next version of y-cruncher will see large performance changes (both up and down).
The #AVX2 -> #AVX512 speedup on #Zen4 will soon grow to 10+% - no wider EUs needed.https://t.co/FrnHGbMA0O pic.twitter.com/iePIEax6Mc
— Alexander Yee (@Mysticial) June 7, 2023
y-cruncher benchmark is a popular tool to evaluate the CPU's performance for how fast it can compute PI. It's a very scalable & multi-threaded benchmark that is being used by the industry for years now and has been available for more than a decade. We also use the same benchmark in our CPU reviews.
Alexander has issued a new changelog for the upcoming y-cruncher 0.8x which is expected to be available soon and is an attempt to clean & modernize the project. Over 400,000 lines of code will be modified and that actual work on this began three years ago but little progress was made until this year. In a performance chart showing the speedup over v0.7.10, you can see that almost all of the CPUs except the older Nehalem and Ivy Bridge chips see a gain in performance in the newer build.
The loss of performance is attributed to the removal of Hybrid NTT which was a big thing back in 2008 but isn't applicable to modern architectures. One of the biggest performance uplifts can be seen on the AMD Zen 4 CPUs with the Ryzen 9 7950X
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