The Firefox + Chrome Web Browser Performance Impact From Intel's JCC Erratum Microcode Update
Written by Michael Larabel in Software on 13 November 2019. Page 2 of 3. 21 Comments

First up are the results for Firefox 70.0.1.

Switching to the new Intel CPU microcode and not making any other changes did impact the performance of Firefox in popular browser benchmarks. The biggest difference was in the Octane JavaScript test where the old microcode was 7% faster and JetStream was 6% faster on the older microcode as well.

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