NVIDIA Gaming Performance Minimally Impacted By KPTI Patches Written by Michael Larabel in Linux Gaming on 4 January 2018 at 12:57 PM EST. Page 1 of 4. 6 Comments. Earlier this week when news was still emerging on the "Intel CPU bug" now known as Spectre and Meltdown I ran some Radeon gaming tests with the preliminary Linux kernel patches providing Kernel Page Table Isolation (KPTI) support. Contr