AMD has revealed its new “Zen 5” architecture, which includes the powerful Ryzen 9 9900X. This 12-core, 24-thread CPU is built on a 4nm process and is likely to be a favorite among high-end PC builders, gamers, and overclockers. That means the AMD Ryzen 9 9900X needs (and deserves) the best thermal paste money can buy. Here are our top recommendations for your build.