Oha

Thermals are pretty much ok as long as you dont have the cpu at 100% 24/7. I’ve never had it go over ~50°C in normal use in my basement. Not sure if it can handle gbit on 2 ports but Iperf between two vlans on the same NIC works flawlessly with lots of cpu to spare

Mine sits at around ~11W during normal usage (~40mbps into a wireguard tunnel)

what about ::1?

Currently running OPNsense on a small Dual-Nic Shuttle PC with an Pentium G4560 and 4 gigs of ram and it’s been handling everything I throw at it perfectly fine. Ive got 16 Interfaces, around 10 Wireguard Peers and a SIT tunnel to HE and Im still getting Line Speeds through the firewall.