Review on 🔥 ARCTIC MX-4 (with Spatula, 8 g) - High-Performance Thermal Paste for CPUs, GPUs - PC, PS4, XBOX- Enhanced Thermal Conductivity, Longevity, Safe Application, Non-Conductive by Thunder Ballman

Almost the best choice, AS5 is a good choice too, but you only get 0.6W/mK difference for almost double the price AND I HAVE 8 GRAMS OF MATERIAL . I can rebuild my two GPUs and my CPU 4 times a year for 6 years no doubt! To put it simply, I've replaced my AS5 which I haven't touched in over 5 years (negligence I know, but I've never pressed it until now) on my 4790k and I have a 3°C difference at startup and 15°CC temperature difference °C after 8 minutes of Prime95. So, with OEM watches, changing the thermal paste is a big hassle and should be done every year if you're into overclocking.