Some games run better on PS5 than Xbox Series X due to a combination of factors, including a more efficient GPU compiler, lower-level APIs, and higher clock speeds. This allows the PS5 to match or even exceed the outputs of the Xbox Series X in certain scenarios, despite the latter's higher teraflop count. However, the Xbox Series X still has advantages in certain situations and game engines due to its higher compute throughput and commonality with PC development.
The Xbox Series X boasts a custom-designed GPU based on AMD's second-generation Radeon DNA architecture (RDNA 2), offering 12 teraflops of graphics performance. This makes it capable of delivering 4K resolution at up to 120 frames per second (FPS), and even supports 8K at 60 FPS. Its GPU power is significantly higher than the Xbox One X and is on par with some of the best graphics cards on the market.
The PS5 has a custom AMD RDNA 2-based GPU with 36 compute units, capable of variable frequency up to 2.23 GHz, delivering 10.28 teraflops of GPU performance. This makes it slightly less powerful than the Xbox Series X, which has 12 teraflops of GPU performance. However, the PS5's GPU is more efficient, allowing it to match or exceed the Xbox Series X's performance in some scenarios.