AMD Zen 1 Linux Performance Hit From Retbleed, Accumulated CPU Mitigation Impact

Written by Michael Larabel in Software on 20 July 2022. Page 6 of 6. 39 Comments

Those wanting to see even more of these AMD Zen 1 Linux CPU mitigation benchmarks can find all of my raw benchmark data via this result page. Especially with Zen 4 right around the corner, if still on AMD Zen 1 it may be time to consider upgrading soon if aiming for peak performance as well as much better power efficiency compared to these older CPUs.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via TwitterLinkedIn,> or contacted via