The Gaming Performance Impact From The Intel JCC Erratum Microcode Update

Written by Michael Larabel in Linux Gaming on 12 November 2019 at 07:30 PM EST. Page 4 of 4. 8 Comments.

Total War: Three Kingdoms, a Linux native game, was another example of seeing higher frame time spikes with the newer JCC code although not enough to affect the overall frame-rate average.

So overall the gaming performance impact of the Intel JCC microcode update fit within the guidance of a 0~4% performance hit from the new microcode update. But for games that aren't graphically demanding there were exceptions like ET: Legacy seeing an 8% hit and aside form the averages in some games the peak frame-times were higher with today's microcode update.

See the rest of the JCC Erratum benchmarks if not already done so, including the results for where a patched assembler can help offset the performance impact.

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Michael Larabel

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 Twitter, LinkedIn, or contacted via