Highest Thermal Conductivity The surfaces of processor chips and cooler floors are covered with microscopic dents; ARCTIC‘s MX-4 thermal paste is composed of microparticles which fill these cavities. This leads to extremely high thermal conductivity, guaranteeing that heat is dissipated quickly and efficiently from the CPU or GPU. With its outstanding performance, the MX-4 is not only an excellent choice for overclockers and enthusiasts, but also for other applications that require thermal transmission. MX-4 proves without a doubt that great performance does not necessarily require a high price.