Question for anyone with some insight...
but is there any way it could be a TECHNICAL difference? It appears although
Actually, there are a whole slew of technical differences that absolutely will impact upload and download speeds:
* Antenna configuration (MIMO branches)
* QAM modulation level
* RF bandwidth (5 v 10 v 20 MHz)
* Max TX power on the base station (eNB)
Plus, not all equipment is created equal - some vendors have better throughput. So, if AT&T is using Vendor A while VzW is using Vendor B, there will be differences there as well.
Toss in the differences in the cell density - and the RF bands used - and pretty soon you're talking some pretty decent differences in user experience.