Yes, my Intel Celeron N5105 had a full core pegged at 100% while doing that iperf and getting those numbers. But there are 4 whole cores, meaning I can get far

Yes, my Intel Celeron N5105 had a full core pegged at 100% while doing that iperf and getting those numbers. But there are 4 whole cores, meaning I can get far more traffic switched and routed with the CPU capacity than all the ports combined can sustain.