VPN Router Compatibility & Throughput Estimator
Check whether your router's processor and firmware can handle whole-network WireGuard or OpenVPN encryption without bottlenecking your ISP speed.
Select your router CPU tier and firmware type, then click Estimate VPN Compatibility & Speed.
Why Router VPN Speeds Depend Heavily on CPU & Protocol
When your router acts as a VPN Client or Server, it must encrypt and encapsulate every packet in real time. Legacy OpenVPN runs in user-space on a single CPU core and relies on heavy OpenSSL context switches—capping even $200 routers at 60 to 180 Mbps. By contrast, WireGuard runs directly inside the Linux kernel using multithreaded ChaCha20-Poly1305 cryptography, delivering 3x to 5x higher throughput on the exact same router hardware.
Real-World Router VPN Throughput Benchmarks (2026)
| Router Model / Tier | CPU Architecture | OpenVPN Throughput | WireGuard Throughput | Policy Split Tunneling |
|---|---|---|---|---|
| ISP Rental Gateway / Basic Mesh | Locked Firmware | Not Supported (Passthrough only) | Not Supported | No (Requires secondary VPN gateway) |
| Entry WiFi 6 (e.g., Archer AX55) | Dual-Core 1.0 GHz | ~45–65 Mbps | ~150–220 Mbps | Basic Device List |
| GL.iNet Beryl AX (GL-MT3000) | Dual-Core 1.3 GHz Filogic | ~150 Mbps | ~300 Mbps | Yes (Domain, IP, MAC, VLAN) |
| ASUS RT-AX86U Pro | Quad-Core 2.0 GHz Broadcom | ~240–280 Mbps | ~650–780 Mbps | Yes (VPN Fusion per device/SSID) |
| GL.iNet Flint 2 (GL-MT6000) | Quad-Core 2.0 GHz Filogic 830 | ~190 Mbps | ~900 Mbps | Yes (Full OpenWrt policy routing) |