How to stop 7800X3D cache latency spikes in Tomb Raider?
That sudden hitching during fast climbs was driving me crazy, causing me to miss platforming windows by a fraction of a second. Looking at the telemetry, the 3D V-Cache on the AMD Ryzen 7 7800X3D is incredibly sensitive to voltage under peak loads; SoC voltage fluctuating between 1.1V - 1.2V caused the CPU clock to jump erratically between 4.2GHz and 4.8GHz. I first tried disabling all PBO and overclocking options, which stabilized the system but tanked my average FPS from 140 to 115—a depressing trade-off. I went back into the BIOS and manually locked the SoC voltage at 1.
