ARCTIC MX-4 4 g Premium Performance Thermal Paste CPU GPU PC Grease

Overclocking CPU and GPU Stress-Testing. For the best results, surface preparation is just as important as the paste itself. Pro-Tip: Before applying your new MX-4, use 90% or higher Isopropyl Alcohol and a lint-free cloth to clean the old residue off your processor and the base of your cooler.