Under a number of different scenarios, the Moto X outperformed the competition and on average, maintained a 35% higher throughput than the other handsets. The Moto X also can keep a connection at a signal level 9db lower than its rivals. And to be fair, we should point out that the Moto X was tested over Verizon's 700MHz LTE band 13 while the others were using AT&T's 700MHz LTE band 17. But Michael Thelander, founder and CEO of Signals Research, said that the Moto X would have performed the same over AT&T's pipeline.
This was not a Speedtest.net quickie. In fact, network speed wasn't even the point of the test. Each phone was placed in an echo-free chamber for 14.4 hours and subjected to 860 minute-length tests. Different angles and power levels were tested. As Thelander notes, information about connectivity is important for everyone using a particular network because one inefficient device can negatively impact everyone else using the same pipeline.
Smartphone D, the Motorola Moto X, had the strongest LTE connectivity among rival handsets
source: SignalsResearch via FierceWireless