While AMD's Ryzen 9000 Series has been underwhelming in early performance reviews, the high-end Ryzen 9 9950X and 9900X CPUs still rank among the best CPUs on the market. Now, just a few weeks after launch, gamers can find pre-built gaming PCs featuring AMD's premium Zen 5 CPUs on Amazon, with GPU options ranging up to an Nvidia RTX 4090.