CPU is the central processing unit chip that lies at the heart of a system. It is housed on a motherboard and cooled by a cpu cooler. The motherboard also hosts any GPU and m.2 connected drives. It is mounted in a case that also houses the power supply (PSU) and extern...
I barely tax the CPU, even more rarely at the same time as the GPU... With my setup as it is now, my CPU temps don't rise more than 1 Deg when my CPU's are under load & get hot. I have these cheapo coolermaster fans, and I put three of them at the bottom as intak...