8
$30+ Orange Pi R2S octa-core RISC-V router board features 2x 2.5GbE, 2x GbE, 2x USB ports
(www.cnx-software.com)
But it has a RISC-V instead of a proper processor.
A benchmark for routing, packet filtering and VPN would be really interesting. I dont have any idea how to compare a RISC-V with say a MIPS with the same number of cores.