Then did another run of the same speed test(took about 2 1/2 minutes) - got ~30Mbps download but again 8mbps upload rate.( So if I'm doing my math right that means Xfinity's Speedtest app is showing speeds 50% faster than what they really are in comparison to ) Xfinity Blast Test: So went to downloaded an app, ran a baseline speed test ( took about 3 minutes) got ~25Mbps download but still an 8Mbps upload rate.

The results of this speed test are from is a real-time speed test where the user can see their download and upload speeds in real-time which takes into account traffic load all over the nation as well as IPV4 vs IPV6 speed test protocols, or at least that's what it says on their website about how they do their tests. Xfinity Speedtest:ĭownloaded an app from Xfinity called 'Speedtest' - ran a baseline speed test ( took about 3 minutes) - got ~35Mbps download and ~8Mbps upload-did another run of the same speed test(took about 2 1/2 minutes) - got ~45Mbps download but still 8Mbps upload rate. The following speed test was done using a laptop with an Intel 2.4GHz dual-core processor and the 'Speedtest' app downloaded from Google Play on Android 5.1 with Android's built-in IPV6 support turned off.

It found that the average download speed of Comcast subscribers at 11.5Mbps was significantly slower than other major providers such as Verizon Fios (16.5Mbs), AT&T U-verse (14.7Mbps), and Charter Communications (13.6Mbps). The Xfinity Speed Test was conducted in May of this year by more than 12,000 consumers for Ookla, which owns and operates.

Xfinity speed test ookla