Below is one example where custom hardware was used to resolve a bottleneck and in the process save one whole CPU core. (Meaning it could be used elsewhere) When Mark is quoted as addressing
all bottlenecks then that would be where the excitement from devs is coming from.
IF similar bottlenecks are resolved on the GPU side then that means you won't need as many teraflops to perform the exact same operations as XSX.
I'm not saying PS5 is more powerful than XSX because of these changers but it obviously at the very least brings the two much closer together performance wise since PS5 is using (as per Mark Cerny) '
a lot of custom hardware'.
Quote taken from -