Windows Vulnerability CPU Meltdown Patch Benchmarked

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Synthetic testing

Synthetic and real-world testing

On this page, we'll grab a couple of benchmarks from the regular test suite. Please , you will only need to focus on the grey bars in the charts, the rest in there is for your understanding of performance scaling, otherwise, they serve no purpose.

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For the first test I figured, wPrime serves it all, a huge load on both the CPU and memory subsystem. The post-patch was slower, but overall it isn't even one second. A marginal difference at best would describe it. I also added the Core i7  8700K on the Maximus X Formula in a few test runs, (this one has the new 1003 BIOS). 

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Above the Mozilla Kraken test, it simulates really heavy browser usage. The result is listed in Milliseconds, and that would be 3 of them. Again, a completely irrelevant difference that could very well be a random difference.

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Compression then, here you typically have a lot of file IO, CPU and memory dependency. We use a threaded test, and yes, there is a 2MB difference between the two patches. This is a 5% differential, and that makes it significant. Would you in real-life ever notice that though? No, not very likely.

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Decompression is much simpler as a task, an algorithm that likes memory, here there was no difference spotted/measured.

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Cinebench R15 then. Single threaded we drop a point or two. We can confirm that all results for the patched OS are slower, but a result like this is simply not significant whatsoever. I also included the Core i7 8700K in here (ASUS Bios 1003).

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Cinebench R15 multi-threaded, yes we drop a few points again. But again this is not even remotely significant. The generic consensus, however, remains that all tests show slightly slower performance, that is a fact.

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For the last synthetic test, I opted Frybench, frybench would probably be a perfect match benchmark to test the patch as it uses CPU and memory heavily and is a drag on the entire PC. Seen from overall results, it again is small in performance differences. But the difference is 3 seconds, and that is significant in the sense that this is over 1 maybe 2% of a perf difference. Let's run some game related benchmarks though.

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