Let's identify some ICs on the front side of the logic board:

Apple A8 APL1011 SoC + Elpida 1 GB LPDDR3 RAM (as denoted by the markings EDF8164A3PM-GD-F)

Qualcomm MDM9625M LTE Modem

Skyworks 77802-23 Low Band LTE PAD

Avago ACPM-8020 High Band PAD

Avago ACPM-8010 Ultra High Band PA + FBARs

TriQuint TQF6410 3G EDGE Power Amplifier Module

InvenSense MP67B 6-axis Gyroscope and Accelerometer Combo