If he can live with 90% of the performance he can also get an intel system and limit the power a bit, or get a lower cpu like the 13700k.Whatever is most important to you decides what you should get. Are you a more power concious user that can still get 90% of the performance at a slightly higher cost for the platform? Get an AMD platform. Do you want the absolute best or bang for your buck? Get either the 13600k or 13700k based platform on DDR5 for performance or DDR4 for budget. Right now is one of the best times in the last 20 year for buying a CPU and its platform. Cannot say the same for GPUs, but it is what it is.
Other than that yeah, look at benchmarks and get whatever you like most, AMD or intel doesn't really make much difference for the run of the mill 3080 system.