Quantum Fiber by CenturyLink wins — Quantum Fiber wins for most users due to symmetric 1-8 Gbps speeds and 5-15 ms latency versus Cox's 20-50 ms and capped …
Scores: Cox Communications Cable Internet 6.5/10 · Quantum Fiber by CenturyLink 8.5/10
Quantum Fiber wins for most users due to symmetric 1-8 Gbps speeds and 5-15 ms latency versus Cox's 20-50 ms and capped uploads per Ookla and FCC broadband reports. Cox remains viable where fiber is unavailable and for download-focused plans under $70. Fiber's dedicated line avoids the congestion common in cable neighborhoods according to multiple ISP comparison studies.
| Cox Communications Cable Internet | Quantum Fiber by CenturyLink | |
|---|---|---|
| Download Speed | Up to 1 Gbps | Up to 8 Gbps |
| Upload Speed | Up to 35 Mbps | Up to 8 Gbps |
| Latency | 20-50 ms typical | 5-15 ms typical |
| Technology | DOCSIS cable | Fiber optic |
Our pick: Quantum Fiber by CenturyLink. It edges out the alternative on symmetric multi-gigabit speeds. That said, Cox Communications Cable Internet still wins on broad geographic availability in cox regions — consider it if that single trade matters most for your use.