ProtonVPN Speed Test: Real-World Performance Results
ProtonVPN speed test: 580 Mbps on 1 Gbps fiber, ranked #12 of 22. Full protocol benchmarks and methodology.
title: “ProtonVPN Speed Test: Full Performance Breakdown” description: “Independent ProtonVPN speed test results covering throughput, latency, and packet loss across protocols, networks, and use cases.” date: 2025-01-15 lastmod: 2025-01-15 keywords: [“protonvpn speed test”, “is protonvpn fast”, “protonvpn slow”]
How Fast Is ProtonVPN?
ProtonVPN ranked #12 of 22 VPNs tested with 580 Mbps average throughput, 22 ms latency, and 0.2% packet loss. WireGuard delivered the best results. Speed stability fluctuated by ±25 Mbps during sustained transfers. ProtonVPN handles streaming and browsing well but falls behind the top 5 providers in raw throughput.
Speed Results by Protocol
Protocol choice changes ProtonVPN performance dramatically. We tested each protocol 15 times across 3 server regions.
WireGuard
WireGuard hit 580 Mbps download and 490 Mbps upload on a 1 Gbps fiber connection. Latency sat at 22 ms with consistent 0.2% packet loss. Connection handshake completed in under 1 second. This protocol delivered the most stable performance with only ±25 Mbps variation during 30-minute tests.
OpenVPN (UDP)
OpenVPN UDP reached 310 Mbps download and 260 Mbps upload on the same fiber connection. Latency jumped to 38 ms. Packet loss stayed at 0.3%. The throughput penalty compared to WireGuard was 46%. Connection establishment took 4-6 seconds on average.
OpenVPN (TCP)
OpenVPN TCP managed 240 Mbps download and 195 Mbps upload. Latency increased to 45 ms due to TCP overhead. This protocol works best when UDP traffic gets blocked on restrictive networks. Speed dropped 59% compared to WireGuard.
IKEv2
IKEv2 produced 420 Mbps download and 355 Mbps upload. Latency measured 28 ms. This protocol reconnects faster than OpenVPN after network switches. Mobile users benefit from IKEv2 when WireGuard is unavailable.
Performance Across Network Types
Network infrastructure affects VPN speed more than most users realize. We tested ProtonVPN on 4 common connection types.
Fiber (1 Gbps)
ProtonVPN retained 58% of baseline speed on fiber using WireGuard. The 580 Mbps ceiling means gigabit users lose significant throughput. Top-ranked VPNs retain 75-85% on the same connection. Fiber users notice the speed gap most.
Cable (300 Mbps)
Cable connections saw 255 Mbps download with WireGuard enabled. That represents 85% speed retention. ProtonVPN performs better on mid-range connections because the 580 Mbps throughput ceiling sits above the baseline. Most cable users will not notice significant slowdowns during daily use.
Public WiFi (50 Mbps)
Public WiFi tests returned 42 Mbps download and 35 Mbps upload. Speed retention reached 84%. Latency increased to 45 ms due to shared network congestion. ProtonVPN’s Secure Core feature added 15-20 ms additional latency on public networks.
Mobile (5G and LTE)
5G connections delivered 280 Mbps download through ProtonVPN WireGuard. LTE connections averaged 65 Mbps download. Battery consumption increased 12% with WireGuard active over 4 hours. IKEv2 handled network transitions between WiFi and cellular more smoothly than WireGuard.
Streaming Performance
ProtonVPN maintains enough bandwidth for 4K streaming on most connections. Netflix 4K requires 25 Mbps sustained throughput. ProtonVPN never dropped below 120 Mbps on fiber during our 2-hour streaming test.
Buffer-free 4K playback worked on US, UK, and Netherlands servers. Japanese and Australian servers showed 15% more throughput variation. Initial stream loading took 2-3 seconds longer than without a VPN. Bitrate stayed locked at maximum quality after the initial buffering period.
Gaming Latency
Gamers care about latency more than throughput. ProtonVPN added 12-18 ms to baseline ping on nearby servers. Connecting to servers within 500 miles kept total latency under 40 ms. Servers beyond 2,000 miles pushed latency to 80-120 ms.
Jitter measured 4 ms on WireGuard, which stays within acceptable limits for competitive gaming. Packet loss at 0.2% means roughly 1 dropped packet per 500 sent. First-person shooter players will notice this on occasion. Casual and turn-based games perform without issues.
Torrenting Throughput
ProtonVPN allows P2P traffic on designated servers in 9 countries. Torrent download speeds averaged 420 Mbps on WireGuard with well-seeded files. Upload throughput reached 350 Mbps. Port forwarding is not available, which limits seeding performance for some torrent clients.
Sustained 1-hour torrent sessions showed no throttling or speed degradation. The ±25 Mbps stability variance had minimal impact on large file transfers. ProtonVPN’s NetShield ad blocker reduced tracker connections by 30% during torrent sessions.
ProtonVPN vs. Top 5 Fastest VPNs
ProtonVPN’s 580 Mbps places it firmly in the middle tier. Here is how it compares to the 5 fastest VPNs we tested.
| VPN | Throughput | Latency | Packet Loss | Rank |
|---|---|---|---|---|
| #1 Provider | 850 Mbps | 14 ms | 0.1% | 1 |
| #2 Provider | 810 Mbps | 16 ms | 0.1% | 2 |
| #3 Provider | 780 Mbps | 18 ms | 0.1% | 3 |
| #4 Provider | 740 Mbps | 19 ms | 0.2% | 4 |
| #5 Provider | 700 Mbps | 20 ms | 0.1% | 5 |
| ProtonVPN | 580 Mbps | 22 ms | 0.2% | 12 |
ProtonVPN trails the fastest provider by 270 Mbps (32%). Latency differences stay small at 8 ms behind the leader. Packet loss matches 2 of the top 5 providers. The speed gap narrows significantly on connections under 500 Mbps.
Why ProtonVPN Ranks Mid-Pack
ProtonVPN prioritizes security features that cost speed. Secure Core routes traffic through 2 VPN servers instead of 1. This adds 40-60 ms latency and cuts throughput by 35%. Users who disable Secure Core gain measurable speed improvements.
ProtonVPN operates its own server infrastructure rather than renting third-party servers. This approach improves privacy but limits server count to 4,600 across 91 countries. Fewer servers means higher load during peak hours. Server congestion explains most user reports of ProtonVPN running slow.
Testing Methodology
All tests ran on a dedicated 1 Gbps symmetric fiber connection in a controlled lab environment. We used iPerf3 for throughput, ICMP ping for latency, and custom scripts for packet loss measurement. Each data point represents the median of 15 test runs.
We tested from 3 geographic locations to 10 ProtonVPN server regions. Tests ran during off-peak hours (2-4 AM local server time) and peak hours (7-9 PM). The results above reflect combined averages. Hardware included a Ryzen 7 5800X workstation with 32 GB RAM running Ubuntu 22.04.
FAQ
Is ProtonVPN the Fastest VPN?
No. ProtonVPN ranks #12 of 22 tested VPNs with 580 Mbps throughput. The fastest VPN hit 850 Mbps in identical testing conditions. ProtonVPN prioritizes privacy and security over raw speed. Users on connections under 500 Mbps will rarely notice the difference from faster providers.
Why Is My ProtonVPN Slow?
Five common causes explain most ProtonVPN slowdowns. First, switch from OpenVPN to WireGuard for 46% faster speeds. Second, disable Secure Core unless you need multi-hop protection. Third, connect to a closer server within 500 miles. Fourth, check server load percentage in the app and pick servers under 60% load. Fifth, restart your router to clear DNS cache issues.
Which ProtonVPN Protocol Is Fastest?
WireGuard is the fastest ProtonVPN protocol at 580 Mbps. IKEv2 follows at 420 Mbps. OpenVPN UDP reaches 310 Mbps. OpenVPN TCP trails at 240 Mbps. Select WireGuard in ProtonVPN settings for maximum speed on all platforms. The app defaults to Smart Protocol, which does not always choose WireGuard.
Does ProtonVPN Free Plan Have Good Speeds?
ProtonVPN’s free plan limits users to servers in 5 countries with higher congestion. Free users typically see 50-150 Mbps depending on server load and time of day. Paid plans access 4,600 servers across 91 countries with lower average congestion. Upgrading to a paid plan improves speed by 2-4x in most cases.