5GHz all core on I5-9600k with 1.25V : r/overclocking
Amazon.com: Micro Center Intel Core i5-9600K Desktop Processor Combo 6 Cores Up to 4.6 GHz Unlocked LGA1151 300 Series 95W Bundle with ASUS Prime Z390-A ATX Motherboard DDR4 DP HDMI M.2 USB
Intel Core i5-9600K Coffee Lake CPU Review - Legit Reviews