Is Cox or Xfinity (Comcast) faster?

Based on 1,118 verified speed tests, Xfinity (Comcast) is faster overall. Cox averages 335 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 18 Mbps. Upload speed difference is 4 Mbps. Ping difference is 5 ms.

Should I choose Cox or Xfinity (Comcast)?

It depends on your use case. Xfinity (Comcast) 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 1,118 verified measurements.

Overall Winner: Xfinity (Comcast)

Cox

Download

335 Mbps

Upload

84 Mbps

Ping Wins

27 ms

Based on 217 measurements · Full Cox stats →

Xfinity (Comcast)

WINNER

Download Wins

353 Mbps

Upload Wins

88 Mbps

Ping

32 ms

Based on 901 measurements · Full Xfinity (Comcast) stats →

Speed Difference Summary

Download difference

18 Mbps

Xfinity (Comcast) is faster

Upload difference

4 Mbps

Xfinity (Comcast) is faster

Ping difference

5 ms

Cox has lower latency

By Country

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

United States Xfinity (Comcast) wins

Cox 338 Mbps (215 tests)

Xfinity (Comcast) 353 Mbps (901 tests)

Test your own speed

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

Run Speed Test

How Cox Compares to Xfinity (Comcast)

Based on 1,118 verified speed tests from Cox and Xfinity (Comcast) customers, Xfinity (Comcast) delivers faster average speeds.

Cox averages 335 Mbps download with 84 Mbps upload and 27 ms ping. Xfinity (Comcast) averages 353 Mbps download with 88 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