Depends on your area.
4G and 3G speeds all depend on your area. 4G is still super spotty and inconsistent. I just did a speed test in the parking lot at mcdonalds. 3G was 1.2 mbs down and 900kbs up. Switched to 4G and got 6.2 mbs up and 2.2 mbs down.
Just figured is throw that out there. I'm in Cleveland Ohio by the way.