To give you a brief overview on performance, we offer up a couple of examples. If you like compiling kernels, the EPYC 9654 can compile the Linux 4.4.2 kernel from kernel.org over 100 times in an hour. The c-ray test at 8K completes in 13 seconds, blowing away the competition. It also topped the Chess benchmark by a fair amount, however STH discovered during testing that the benchmark needs updating at it stopped scaling at a mere 256 threads.
This processing power does come at a cost, when measured at the wall a dual socket AMD EPYC 9654 system pulled between 1kW-1.2kW testing. That is not significantly more than previous generations but worth noting if you are looking to update your server room.