Is Cox or Optimum faster?

Based on 583 verified speed tests, Cox is faster overall. Cox averages 348 Mbps download, Optimum averages 384 Mbps download.

What is the average speed difference between Cox and Optimum?

The average download speed difference is 36 Mbps. Upload speed difference is 4 Mbps. Ping difference is 9 ms.

Should I choose Cox or Optimum?

It depends on your use case. Cox 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 583 verified measurements.

Overall Winner: Cox

Cox

WINNER

Download

348 Mbps

Upload Wins

80 Mbps

Ping Wins

26 ms

Based on 376 measurements · Full Cox stats →

Optimum

Download Wins

384 Mbps

Upload

76 Mbps

Ping

35 ms

Based on 207 measurements · Full Optimum stats →

Speed Difference Summary

Download difference

36 Mbps

Optimum is faster

Upload difference

4 Mbps

Cox is faster

Ping difference

9 ms

Cox has lower latency

By Country

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

United States Optimum wins

Cox 350 Mbps (374 tests)

Optimum 384 Mbps (207 tests)

Test your own speed

See if your connection matches the Cox or Optimum average.

Run Speed Test

How Cox Compares to Optimum

Based on 583 verified speed tests from Cox and Optimum customers, Cox delivers faster average speeds.

Cox averages 348 Mbps download with 80 Mbps upload and 26 ms ping. Optimum averages 384 Mbps download with 76 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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