WireGuard vs OpenVPN: which protocol is faster?
WireGuard and OpenVPN are different VPN protocol families with different designs, but the fastest choice in practice still depends on the provider, route, server and source network. Secure-VPN separates the protocol explanation from the data it actually measures.
WireGuard vs OpenVPN in speed
WireGuard has a smaller modern codebase and uses UDP, while OpenVPN can operate over UDP or TCP and has a much longer deployment history. Those design differences can affect overhead and latency, but they do not guarantee the same performance on every VPN service or route.
What Secure-VPN actually measures
Our current benchmark network measures NordLynx, NordVPN's WireGuard-based implementation, alongside OpenVPN UDP and TCP. We do not label NordLynx results as stock WireGuard. Use Speed by protocol for the live source-specific numbers.
WireGuard-based NordLynx vs OpenVPN
For NordVPN, compare NordLynx, OpenVPN UDP and OpenVPN TCP within the same source location and time window. Check median download, retention, latency, destinations and sample count together; a single peak Mbps result can be misleading.
Security and reliability
Protocol choice is only one part of VPN security. Provider configuration, key handling, software updates and network policy also matter. OpenVPN's TCP mode can be useful as a compatibility fallback on restrictive networks, while UDP-based tunnels are often preferred when low overhead and responsiveness matter.
WireGuard vs OpenVPN for latency
Latency is affected by protocol overhead, but route distance and congestion can dominate the result. A nearby OpenVPN server can beat a poorly routed WireGuard-based server, which is why Secure-VPN keeps source and exit locations visible next to the protocol.
WireGuard vs OpenVPN for long-distance routes
Long-distance VPN performance depends heavily on the underlying network path. Compare speed retention rather than raw Mbps when the baseline connection differs between test locations, and use sample count plus P10–P90 spread to avoid choosing a protocol from one unusually fast run.
OpenVPN UDP vs OpenVPN TCP
OpenVPN is not one performance profile. UDP and TCP can behave differently, especially on lossy or restrictive networks. The separate OpenVPN UDP vs TCP guide explains that distinction and links back to the measured protocol table.
Which should you choose?
If your VPN offers a WireGuard-based protocol and it works reliably on your network, test it first, then compare it with OpenVPN on the same destination. If UDP is blocked or unstable, OpenVPN TCP may be worth testing as a fallback. The Secure-VPN speed test starts from your own connection so you can compare likely outcomes instead of relying on somebody else's line speed.