Is Google Fiber or Xfinity (Comcast) faster?

Based on 977 verified speed tests, Google Fiber is faster overall. Google Fiber averages 370 Mbps download, Xfinity (Comcast) averages 353 Mbps download.

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

The average download speed difference is 17 Mbps. Upload speed difference is 120 Mbps. Ping difference is 3 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 977 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

353 Mbps

Upload

88 Mbps

Ping

32 ms

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

Speed Difference Summary

Download difference

17 Mbps

Google Fiber is faster

Upload difference

120 Mbps

Google Fiber is faster

Ping difference

3 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) 353 Mbps (901 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 977 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 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.

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