Recently upgraded a very cool running Ryzen 1600 af on which I was using the included aftermarket Mugen 5 cooling paste, switched to 3600 and bought a new Artic MX4 paste. 1600 af overclocked all cores, 3900 always idled at 37-40 and went up to 62 in games. 3600 idled at 55 and went over 70 in games and 80-82 in Cinebench. had to try. MARVELOUS! Temperature dropped by over 10 degrees. I just replaced my 1060 GPU which was running 80c. Disassembled it to put back the factory paste which missed the heatsink patches and was dirty as hell. I'll update the numbers when my old CPU/GPU meets my friends' build. Just buy it! And when performance falls short, they offer you 10x more product for the same price.