AMD RX-427BB, more power than i5-5250u
There is a long discussion thread in servethehome forum about RX-427BB:
The 4-core CPU, AMD RX-427BB of DFI DT122 or HP T730 barebone, has more cpu power than i5-5250u(the cpu of my Q355G4 ). If adding a 4-port gigabit card to this barebone, it will be a very good pfSense platform.
There are also some openvpn speed tests in this thread.
Of cause, this AMD cpu draws more power than the i5-5250u: TDP 35 Watts vs 15 Watts.
The single thread performance of that CPU actually looks a little worse than the 5250u in a synthetic test:
There's very little in it though.
This AMD barebone can load maximum 16GB ram that is better than q355g4's 8GB. It has 2 more cores and 8gb more ram to run suricata.
It has a bit weaker Passmark than 8-core atom c3758's: score 43xx vs 44xx. (I did know it is unfair for an atom cpu which is designed for network security. And I am satisfied with c3758.).
I guess it can get 1gbps throughput when using suricata as IDS as c3758, too.
I think it has a similar openvpn throughput as i5-5250u, too.