Silver is the way to go for thermal compound. This product claims that it will reduce temperatures by at least 5C on whatever you use it on. I'm here to tell you that it does at least that, and sometimes even further depending on your particular setup. I use this product with all of my own builds, I recommend it to other builders that I know, and I use this product for my customer builds. It doesn't take very much of this to do the job, only a "pea sized" amount placed in the center of whatever you're going to use it on.