On: Understanding L1 Terminal Fault aka Foreshadow: What You Need to Know

[dannyw]

What is the net performance impact of all these Meltdown, Spectre, now Foreshadow mitigations?

-10%? -20%? -30%?

Have we gone back 3 CPU generations?

[Sohcahtoa82 → dannyw]

This is something I'd really like answered.

I'm still running an i7-3770k on my desktop at home. I was considering upgrading when the 9th gen comes out in October, but if the Spectre/Meltdown/Foreshadow fixes have a significant performance impact, it won't be worth spending the money. As it is, I'll already need a new motherboard and RAM, since I'm still on DDR3.