Wireless routers with powerful CPUs, looking for recommendations
I'm looking for a wireless router to terminate a VPN connection (IPSec or WireGuard), with a relatively high bandwidth requirement (up to 1 Gbps). IPSec would benefit from AES hardware acceleration on newer ARM cores, while WireGuard on ChaCha20 will just eat raw CPU power.
It also needs to support at least 1300Mbps on 802.11ac (obviously a more optimistic client Tx/Rx rate is closer to 500Mbps in this case). Outdoor / high client count support not needed.
My current, sub-£100 router running MIPS 1004Kc (2x800Mhz cores) can run WireGuard at around 150Mbps, which isn't good enough. I tested this on a wired connection so pretty sure the bottleneck is the CPU. The question is, how much faster can routers go?
I've previously tried using an Intel NUC DIY which solved the CPU problem, but Intel Wireless-AC is so poorly supported on 5Ghz on Linux distribution kernels, that it was impractical to run as a home router.
Budget is probably up to £300 / $400. Does anyone have any recommendations?