Every month, millions of broadband consumers pay for internet plans advertised at 300 Mbps, 500 Mbps, or 1,000 Mbps. Yet when they stream movies at 8 PM or join an important conference call, they experience buffering, packet drops, and sluggish page loads. Why does the number on your monthly bill so rarely match the speed you physically experience?

VelocityVerify continuously aggregates anonymous, neutral diagnostic telemetry across thousands of active consumer connections. This report analyzes the delivery ratio gap across Fiber, Cable, DSL, and Fixed Wireless technologies.

2. The "Up to" Marketing Problem

Internet Service Providers do not sell guaranteed bandwidth to residential customers. They sell an "up to" best-effort service tier. Under FCC guidelines in the United States and Ofcom regulations in the United Kingdom, providers are legally compliant as long as their network can theoretically hit that advertised throughput under ideal, isolated laboratory conditions.

The FCC's multi-year Measuring Broadband America studies have repeatedly documented that while marketing speeds have increased tenfold over the past decade, the real-world delivery ratio gap during peak prime-time hours remains persistent.

3. Measured Speed vs. Advertised Claims (Delivery Ratio)

The delivery ratio is calculated by dividing measured real-world throughput by the advertised subscription speed. Here is what our aggregate field telemetry demonstrates:

Connection Type Typical Plan Median Off-Peak Median Peak (7–10 PM) Avg. Delivery Ratio
FTTH Fiber (Symmetric) 1,000 Mbps 940 Mbps 910 Mbps 94% (Near-Perfect)
Cable (DOCSIS 3.1) 600 Mbps 520 Mbps 310 Mbps 72% (Peak Drops)
Cable (DOCSIS 3.0) 200 Mbps 175 Mbps 90 Mbps 66% (Severe Drop)
DSL / VDSL2 100 Mbps 75 Mbps 65 Mbps 70% (Distance Capped)
Fixed Wireless 5G Home 300 Mbps 220 Mbps 130 Mbps 58% (Cell Tower Load)

The engineering pattern is unmistakable: pure fiber-to-the-home (FTTH) connections deliver over 90% of advertised throughput regardless of the time of day. In contrast, coaxial cable and 5G wireless networks show massive peak-hour degradation, losing up to 50% of available bandwidth between 7 PM and 10 PM.

4. Latency Tells a Different Story Than Throughput

Throughput (megabits per second) is only half the equation. For interactive tasks like gaming, video calls, and voice over IP, latency and jitter dictate your user experience far more than raw download speed.

68%
Of residential cable connections exhibit baseline latency above 30ms during peak hours—purely from neighborhood node congestion upstream of the home, before factoring in local Wi-Fi or bufferbloat.

When you combine upstream cable node contention with household bufferbloat, effective latency frequently surges past 150ms during prime time. On fiber lines, however, dedicated optical wavelengths and lack of neighborhood contention keep latency rock-solid under 10ms around the clock.

5. Why Peak Hours Hit Cable Nodes So Hard

Coaxial cable internet operates over a shared physical tree-and-branch architecture. A single neighborhood optical node and CMTS (Cable Modem Termination System) serves anywhere from 100 to 500 homes.

When hundreds of subscribers return home at 7 PM and simultaneously fire up Netflix 4K, YouTube, and PlayStation downloads, available RF spectrum on the coax loop saturates. The CMTS is forced to queue and pace packets across all modems, causing throughput to crash and latency variance (jitter) to skyrocket.

6. What to Do With This Information

  1. Benchmark at Multiple Times of Day: Never rely on a single speed test at 2 PM on a Tuesday. Run tests at 8 AM, 2 PM, 8 PM, and 11 PM using a wired Cat6 connection. If your evening numbers consistently drop by more than 30%, you have actionable data to file a node congestion ticket with your ISP.
  2. Check Your Bufferbloat Grade: A plan with high speed but terrible bufferbloat will feel like dial-up when anyone else uses the network. Test your line for queue delay.
  3. Prioritize Fiber Wherever Available: If FTTH fiber enters your neighborhood, the performance upgrade over cable is night and day. Fiber eliminates both upload asymmetry and neighborhood node contention.

7. VelocityVerify Global ISP Performance Index

We believe in radical broadband transparency. Our Global ISP Performance Index continuously monitors aggregate performance metrics across major broadband providers over rolling 90-day periods. Check the index to compare how your ISP compares against regional competitors in real delivery ratios, average latency, and bufferbloat resistance.