Yesterday, 12:34 AM
No, I don't believe anyone's benchmarked on a new-ish mainframe but I can guess how it'll go - CPUs are often hundreds of times slower than GPUs, even very strong CPUs are often beaten by low-end GPUs so a single 4090 would probably destroy basically any mainframe. (Again, this is just a guess and has a lot more nuance like specific hash types acting differently etc)