Is Cox or Optimum faster?

Based on 431 verified speed tests, Optimum is faster overall. Cox averages 337 Mbps download, Optimum averages 377 Mbps download.

What is the average speed difference between Cox and Optimum?

The average download speed difference is 40 Mbps. Upload speed difference is 2 Mbps. Ping difference is 7 ms.

Should I choose Cox or Optimum?

It depends on your use case. Optimum offers faster average speeds, but actual performance varies by location and plan. Test your current connection and compare to both averages before switching.

Cox vs Optimum

Full speed comparison based on 431 verified measurements.

Overall Winner: Optimum

Cox

Download

337 Mbps

Upload

80 Mbps

Ping Wins

28 ms

Based on 275 measurements · Full Cox stats →

Optimum

WINNER

Download Wins

377 Mbps

Upload Wins

82 Mbps

Ping

35 ms

Based on 156 measurements · Full Optimum stats →

Speed Difference Summary

Download difference

40 Mbps

Optimum is faster

Upload difference

2 Mbps

Optimum is faster

Ping difference

7 ms

Cox has lower latency

By Country

Head-to-head comparison where both ISPs have user data.

United States Optimum wins

Cox 339 Mbps (273 tests)

Optimum 377 Mbps (156 tests)

Test your own speed

See if your connection matches the Cox or Optimum average.

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How Cox Compares to Optimum

Based on 431 verified speed tests from Cox and Optimum customers, Optimum delivers faster average speeds.

Cox averages 337 Mbps download with 80 Mbps upload and 28 ms ping. Optimum averages 377 Mbps download with 82 Mbps upload and 35 ms ping.

Averages tell only part of the story — actual speeds vary by your specific plan, location, time of day, and whether you use Ethernet or Wi-Fi. Run a speed test on your current connection to see how it compares to both averages before making a switching decision.

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