Is Cox or Xfinity (Comcast) faster?

Based on 1,700 verified speed tests, Cox is faster overall. Cox averages 337 Mbps download, Xfinity (Comcast) averages 353 Mbps download.

What is the average speed difference between Cox and Xfinity (Comcast)?

The average download speed difference is 16 Mbps. Upload speed difference is 4 Mbps. Ping difference is 4 ms.

Should I choose Cox or Xfinity (Comcast)?

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 Xfinity (Comcast)

Full speed comparison based on 1,700 verified measurements.

Overall Winner: Cox

Cox

WINNER

Download

337 Mbps

Upload Wins

86 Mbps

Ping Wins

28 ms

Based on 295 measurements · Full Cox stats →

Xfinity (Comcast)

Download Wins

353 Mbps

Upload

82 Mbps

Ping

32 ms

Based on 1,405 measurements · Full Xfinity (Comcast) stats →

Speed Difference Summary

Download difference

16 Mbps

Xfinity (Comcast) is faster

Upload difference

4 Mbps

Cox is faster

Ping difference

4 ms

Cox has lower latency

By Country

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

United States Xfinity (Comcast) wins

Cox 339 Mbps (293 tests)

Xfinity (Comcast) 353 Mbps (1405 tests)

Test your own speed

See if your connection matches the Cox or Xfinity (Comcast) average.

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How Cox Compares to Xfinity (Comcast)

Based on 1,700 verified speed tests from Cox and Xfinity (Comcast) customers, Cox delivers faster average speeds.

Cox averages 337 Mbps download with 86 Mbps upload and 28 ms ping. Xfinity (Comcast) averages 353 Mbps download with 82 Mbps upload and 32 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.

Cox speed Xfinity (Comcast) speed All ISPs Country speeds