Is Google Fiber or Xfinity (Comcast) faster?

Based on 1,006 verified speed tests, Google Fiber is faster overall. Google Fiber averages 370 Mbps download, Xfinity (Comcast) averages 352 Mbps download.

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

The average download speed difference is 18 Mbps. Upload speed difference is 121 Mbps. Ping difference is 4 ms.

Should I choose Google Fiber or Xfinity (Comcast)?

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

Google Fiber vs Xfinity (Comcast)

Full speed comparison based on 1,006 verified measurements.

Overall Winner: Google Fiber

Google Fiber

WINNER

Download Wins

370 Mbps

Upload Wins

208 Mbps

Ping Wins

29 ms

Based on 76 measurements · Full Google Fiber stats →

Xfinity (Comcast)

Download

352 Mbps

Upload

87 Mbps

Ping

33 ms

Based on 930 measurements · Full Xfinity (Comcast) stats →

Speed Difference Summary

Download difference

18 Mbps

Google Fiber is faster

Upload difference

121 Mbps

Google Fiber is faster

Ping difference

4 ms

Google Fiber has lower latency

By Country

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

United States Google Fiber wins

Google Fiber 366 Mbps (74 tests)

Xfinity (Comcast) 352 Mbps (930 tests)

Test your own speed

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

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How Google Fiber Compares to Xfinity (Comcast)

Based on 1,006 verified speed tests from Google Fiber and Xfinity (Comcast) customers, Google Fiber delivers faster average speeds.

Google Fiber averages 370 Mbps download with 208 Mbps upload and 29 ms ping. Xfinity (Comcast) averages 352 Mbps download with 87 Mbps upload and 33 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.

Google Fiber speed Xfinity (Comcast) speed All ISPs Country speeds