Ludicrous overclock slams 1.7 volts into 6700K in an attempt to stop CPU from bottlenecking an RTX 3080 — 5.2 GHz on aging four-core pushes GPU utilization from 60% to 74% by editors@tomshardware.com (Aaron Klotz) from Latest from Tom's Hardware on 2026-06-07 11:00 (#764WY) YouTuber challenges himself to alleviate a CPU bottleneck with a Core i7-6700K paired with an RTX 3080 through overclocking.