I just recently got a new ISP and new internet speed 1200/600, my current firewall with opnsense can not handle the speed (AMD GX-412TC SOC), I have been looking for a new firewall (opnsense + 2.5 Ethernet) and found several with the Intel N100 CPU (2023).
I was wondering if this CPU is good enough to handle the Internet speed and if there is overhead?
The problem is Opnsense, as the BSD kernel used is doing single thread network routing. So the APU can saturate 1gbit with multiple connections/threads or if you switch to a firewall with a Linux kernel like OpenWRT.
That said, a N100 probably does have enough single thread performance to do 1.2 Gbit. Not sure about the full 2.5gbit though.