iPhone Speed Verizon vs. AT&T
iPhone proves to be faster on the AT&T 3G network but more reliable on the Verizon 3G Network. Being in Montana we really don't have much of a choice as AT&T is virtually non-existant and Verizon is virtually everywhere. Wired has conducted a legitimate study to prove the differences between the two cell-phone carriers.
Brian X. Chen - Wired
The Verizon iPhone and AT&T iPhone have gone head-to-head in thousands of broadband tests, and the numbers tell the story you’d expect: AT&T’s network is much faster.
Ookla, creators of the Speedtest.net broadband test, compiled data from tests run by iPhone customers using the Speedtest.net app on both AT&T and Verizon. On average, the reported AT&T iPhone transfer rates were roughly two times faster than the Verizon iPhone’s.
The AT&T iPhone’s average download speed was 1,769 Kbps, and the average upload speed was 730 Kbps. By way of comparison, the Verizon iPhone’s average download speed was 848 Kbps, and the average upload speed was 506 Kbps.