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Intel details performance hit for Meltdown fix on affected processors

Intel details performance hit for Meltdown fix on affected processors
From TechCrunch - January 11, 2018

Now that the Meltdown and Spectre cats are out of the bag and patches are being issued left and right, the main question people have is: will this affect my everyday work? Intels latest performance metrics suggest that yes it might, but not too muchmore so if, like me, you have an older processor.

Intels Navin Shenoy released the results of several benchmarks done internally, and the performance hit from the deeply rooted processor problem disclosed by Google researchers is mercifully small for modern chips.

The most recent Kaby Lake processors, introduced late last year, generally see less than 5 percent performance loss in SYSmark14SE, and often none at all. (The margin of error is stated at +/- 3 percent.)

But the biggest hit for those CPUs, and in fact most of the others as well, is on responsiveness, which according to the benchmark apps creators includes application launches, file launches, web browsing with multiple tabs, multi-tasking, file copying, photo manipulation, file encryption + compression, and background application installation. So, pretty much all the stuff most people need to do.

Gaming performance seems mostly unaffected, and with most GPUs affected in a more limited way or not at all by the exploits and their mitigations, gamers can probably rest easy.

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