How does the AMD Ryzen 9 7900 CPU perform versus the Ryzen 9 7900X CPU? In todays head-to-head CPU performance comparison review, we pit the Ryzen 9 7900 versus the Ryzen 9 7900X and benchmark them in both synthetic system benchmarks, as well as gaming performance to see what the real difference is between them. If youve been wondering how close the Ryzen 9 7900 performs to the Ryzen 9 7900X, then this is the review for you. To go even one step further, we are also going to enable AMD Precision Boost Overdrive (PBO) on the Ryzen 9