Cant speak to the atom directly. But i have a Celeron J1900 which is...similar if not slightly more performant.http://cpuboss.com/cpus/Intel-Celeron-J1900-vs-Intel-Atom-C2558My network can run gigabit non-routed without issue. aka switches arent an issue.Pure routing mine does ~500-550 Mbits/s on standard iperf test (theres other streams routing while i run this test...maybe 15-30 Mbps). Both with and without -d (dual)note: sorry for the external link, i dont know how to attach images inline here.https://imgur.com/a/LxEVhhzThrow Suricata in the mix and I'm closer to 130 inter-vlan as it inspects the traffic both ingress and egress.https://imgur.com/a/XgS6ZImThough i can push my ISP tier (240 Mbps) across the WAN (where Suricata is only inspecting the traffic once)Ultimately WAN is all I care about. Anything I want faster than 130 Mbps I'll stick on my main LAN.