Synthetic System Benchmarks
We are going to start with synthetic system application benchmarks on this page. Gaming performance will be shown later on. In the graphs, the overclock is indicated with the @4.6GHz and “PB2” simply stands for Precision Boost 2, which is the Stock standard behaviour of the Ryzen 9 3900X, not to be confused with PBO or Precision Boost Overdrive on Ryzen 5000 CPUs. Therefore, Ryzen 9 3900X is at Stock settings in our graphs.
PCMark 10
In this test, we can see the Ryzen 9 5900X take a commanding lead when overclocked manually, guaranteeing all 12 cores operate at a higher frequency than we would ordinarily see. Performance between the 11900K and 5900X at stock speeds was surprisingly close here. We also see considerable gains over the older 3900X.
Geekbench
Geekbench 5.1.1 was used for this test. It is a multi-platform test that is comparable across different CPU architectures.
Here we see a score of 1,835 on the Core i9 11900K which does exceed the result achieved by the 5900X at stock or all core overclocked speeds.
In the multi-core test, the Core i9 11900K and AMD Ryzen 9 3900X score extremely close. However, the 5900X beats both by a healthy margin at both stock and overclocked speeds.