Benchmark Overview & Key Finding (TL;DR): Bandwidth costs in international data centers adhere to strict economic laws: Tier-1 2.5Gbps enterprise IEPL physical circuits cost ¥180–¥240 / Mbps / month, whereas public BGP tunnels cost only ¥12–¥25 / Mbps / month. This 10x to 15x cost disparity explains why cheap proxies must oversubscribe beyond 30:1 to remain solvent, triggering inevitable evening peak bufferbloat and packet drops.
1. Bandwidth Cost Reality: Detailed Comparison
| Circuit Architecture | Unit Cost (per Mbps/mo) | 1Gbps Circuit Monthly Cost | GFW Bypass | Peak Oversubscription Ratio |
|---|---|---|---|---|
| Enterprise IEPL Dedicated | ¥180 – ¥240 | ¥180,000 – ¥240,000 | Yes (Private Layer 2) | High Quality (1:3) |
| China Telecom CN2 GIA | ¥90 – ¥140 | ¥90,000 – ¥140,000 | No (Priority Public) | Medium (1:8) |
| China Unicom 9929 Premium | ¥70 – ¥110 | ¥70,000 – ¥110,000 | No (Public A-Net) | Medium (1:10) |
| Standard Public Tunnel (4837/CMI) | ¥12 – ¥25 | ¥12,000 – ¥25,000 | No (Public Gateway) | Severe (1:30+) |
2. The Math of Cheap Proxy Oversubscription
If a budget provider rents a 1Gbps public relay for ¥15,000/month and sells ¥9.9 plans with 500GB quotas, they must acquire at least 1,500 active subscribers to cover baseline operational expenses. When 300+ users stream 4K video simultaneously at 21:00 CST, demand hits 15Gbps against a 1Gbps pipe, triggering complete tail-drop packet loss.
3. Ecosystem Internal Linking Matrix
- Upward Pillar: Back to 2026 Global Proxy Speed Ladder & Architecture Hub
- Lateral Insights:
- Client Tutorials: Clash Verge Rev TUN Setup