TechSpot ran two Dell XPS 13 ultraportables, one powered by a Broadwell era i5-5200U and one with a Coffee Lake i7-8550U, through a battery of benchmarks and tasks to see what effect the patches have had on performance.  They were lucky not to encounter the stability issues currently plaguing machines with patched UEFI but they do mention it. For intensive tasks, such as rendering or numerical calculations there was a noticeable hit to performance after the patches were installed, with both systems suffering equally.  This is interesting to see as there has been mention that older processors may suffer more than current generation CPUs.  Take a look at this newest set of benchmarks and expect to see more soon.

"We've already covered what you can expect on modern desktop systems, however today we'll be diving into the mobile side of things to see how Meltdown and Spectre patches affect ultraportable laptops."

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