A new set of photos from Feld & Volk and Sonny Dickson today that revealed the NFC chip present on the logic board of the 4.7-inch iPhone 6 also offers a good look at the flash storage module on this board. Based on the Toshiba part number, as seen on similar modules, the "7" indicates that this is a 16 GB module, suggesting the low-end iPhone 6 will continue to offer that amount of storage.
The discovery is in line with a previously leaked schematic and table that showed part numbers for the phone's various memory options. Notably, only 16GB, 64GB, and 128GB sizes are were the list, the 32GB variant is strangely is missing.
The leaked logic board also reveals that the device will have 1GB of RAM and has been used to assemble an iPhone 6 that actually powers on.