How to test how much Spectre and Meltdown hurt your PC's performance
(PCWorld)

With manufacturers again shipping Meltdown and Spectre updates to fix security exploits in CPUs, you may be wondering just how much of a hit your PC has taken.After testing how much the updates affected older PCs and my own Surface Book performance laptop, and studying the benchmarks run by colleagues at Techspot and PCMag as well, we believe we`ve found a simple way for the average consumer to gauge the slowdown.To read this article in full, please click here