Arctic Ceramique Thermal Compound
The high-density, ceramic-based thermal compound specifically designed for modern high-power CPUs and high-performance heatsinks or water-cooling solutions. Made with micronized aluminum oxide, boron nitride and zinc oxide.Ceramique uses a high-density layered composite of five unique shapes of thermally conductive aluminum oxide, boron nitride and zinc oxide sub-micron particles to maximize particle-to-particle contact area and thermal transfer.This exclusive combination provides performance exceeding most metal based compounds.
Arctic Silver 5 Thermal Compound
Introducing Arctic Silver 5 With its unique high-density filling of micronized silver and enhanced thermally conductive ceramic particles, Arctic Silver 5 provides a new level of performance and stability. Now available at Arctic Silver dealers worldwide, Arctic Silver 5 is definitely The New Reference. Arctic Silver 5 is optimized for use between modern high-power CPUs and high performance heatsinks or water-cooling solutions. Arctic Silver 5 uses three unique shapes and sizes of 99.9% pure silver particles to maximize particle-to-particle contact area and thermal transfer. Check out this review
or this comparative review
for more information.
I would personally use Arctic Silver 5 but thats only because I have used it in the past and its been great!