There has been some discussion in the media about the disk/SSD performance of the new iPhone7.
There was reports that the models with smaller drives are slower.
So we did some data mining in our iPhone benchmark database to see if this was true.
The tables below show the results from 2587 separate iPhone7 devices that have run our PerformanceTest Mobile benchmark to date.
And it seems it is true. The smaller models are much slower.
iPhone 7
| Internal Phone Model # | Disk Size (GB) | Avg Disk Mark | Avg Read (MB/Sec) | Avg Write (MB/Sec) | Benchmark Samples |
| iPhone9,1 | 25.9 | 37384 | 667.2 | 72.4 | 70 |
| iPhone9,3 | 25.9 | 39642 | 710.0 | 75.1 | 396 |
| iPhone9,1 | 113.6 | 62237 | 772.4 | 336.9 | 195 |
| iPhone9,3 | 113.6 | 63499 | 808.3 | 330.8 | 619 |
| iPhone9,1 | 231.7 | 63868 | 751.2 | 372.3 | 161 |
| iPhone9,3 | 231.7 | 66681 | 831.6 | 358.4 | 53 |
iPhone 7 Plus
| Internal Phone Model # | Disk Size (GB) | Avg Disk Mark | Avg Read (MB/Sec) | Avg Write (MB/Sec) | Benchmark Samples |
| iPhone9,2 | 25.7 | 45713 | 838.2 | 74.1 | 125 |
| iPhone9,4 | 25.8 | 46310 | 838.0 | 82.2 | 178 |
| iPhone9,2 | 113.4 | 74944 | 1028.2 | 343.0 | 138 |
| iPhone9,4 | 113.4 | 74223 | 1025.3 | 335.2 | 276 |
| iPhone9,2 | 231.5 | 78924 | 1047.1 | 384.0 | 143 |
| iPhone9,4 | 231.5 | 79058 | 1050.9 | 383.4 | 233 |