10Gbps Lab Testing Methodology
At BestVPNRadar's hardware laboratory, we run daily automated throughput and latency benchmarks over dedicated 10Gbps fiber interfaces connected to Equinix IX exchanges in Virginia (US East), London (UK), Frankfurt (DE), and Tokyo (JP).
Key Metric Definitions
- Retained Bandwidth (%): Percentage of native ISP throughput maintained after establishing an AES-256 or ChaCha20 encrypted tunnel.
- Time to First Byte (TTFB): Initial cryptographic handshake and packet establishment overhead measured in milliseconds.
- Jitter & Packet Loss: Jitter variation under 50,000 concurrent UDP streams.
2026 Speed Benchmark Summary Table
| Provider | Default Protocol | US East (1Gbps Baseline) | Europe (1Gbps Baseline) | Asia-Pacific | TTFB Latency |
|---|---|---|---|---|---|
| NordVPN | NordLynx (WireGuard) | 945 Mbps (94.5%) | 912 Mbps (91.2%) | 840 Mbps (84.0%) | 14.2 ms |
| ExpressVPN | Lightway (DTLS) | 920 Mbps (92.0%) | 895 Mbps (89.5%) | 815 Mbps (81.5%) | 17.5 ms |
| Surfshark | WireGuard | 910 Mbps (91.0%) | 880 Mbps (88.0%) | 790 Mbps (79.0%) | 18.1 ms |
| CyberGhost | WireGuard | 860 Mbps (86.0%) | 830 Mbps (83.0%) | 740 Mbps (74.0%) | 24.8 ms |
Why WireGuard Outperforms OpenVPN by 3x
WireGuard executes natively inside the Linux Kernel space (wireguard.ko), eliminating costly context switching between kernel space and userland processes. OpenVPN requires context switches for every packet frame, causing high CPU overhead on multi-gigabit connections.