The test was conducted within the AT&T LTE network. The compared performance of the 3 phones in their data speed was indicated below, so you may have an idea if how efficient these phones regarding data processing.
Source
|
|
iPhone 5
|
Galaxy S3
|
iPhone 4S
|
|
Test 1 download
|
11.92 Mbps
|
8.77 Mbps
|
1.02 Mbps
|
|
Test 1 upload
|
10.87
|
13.93
|
1
|
|
Test 2 download
|
7.17
|
10.58
|
1.76
|
|
Test 2 upload
|
2.88
|
9.36
|
0.96
|
|
Test 3 download
|
10.05
|
7.3
|
1.78
|
|
Test 3 upload
|
8.58
|
15.7
|
0.87
|
|
Test 4 download
|
10.48
|
9.95
|
1.96
|
|
Test 4 upload
|
7.59
|
14.35
|
0.84
|
|
Test 5 download
|
9.27
|
7.75
|
2.03
|
|
Test 5 upload
|
7.44
|
14.39
|
0.88
|
|
Average download
|
9.78
|
8.87
|
1.71
|
|
Average upload
|
7.47
|
13.55
|
0.91
|
Source