in terms of IPC, DDR5 can do about 50GB/s per memory channel

assuming you're only shuffling bytes around, on bare metal this would be ~20 DDR5 channels worth

or 2 servers (12 channels/server for EPYC)

you can get an awful lot of compute these days for not very much money

(shipping your code to the compressed video instead of the exact opposite would probably make more sense though)