Yes. I can achieve line rate throughput (940mbps measured tcp throughput) with a USB 3.0 gigabit dongle on one side, and the built-in ethernet on the other.

Out of bos without tuning, it's more like 750mbps maximum throughput. Most of the optimizations are pinning IRQs and RX buffers to particular CPU cores, otherwise it'll max out one core and limit the throughput.

I'm routing and forwarding, as well as stateful firewalling with nftables.