I route gigabit with a much slower processor than that. Good routers are built for reliability, and most of them seem to opt for slowish CPUs and a fast-path f

I route gigabit with a much slower processor than that. Good routers are built for reliability, and most of them seem to opt for slowish CPUs and a fast-path for routing that doesn't involve the CPU at all. The CPU is there to update the routing table and do other supporting chores.