On Wednesday, Apple announced the iPhone 5. The new iPhone offers some incredible new improvements including the use of a new A6 processor. It has been widely rumored that Apple would increase the RAM in the new iPhone from 512MB to 1GB, but there wasn’t any confirmation. The iPhone 4S and iPhone 4 both offer 512MB RAM.
iFan first posted confirmation that the iPhone 5 has 1GB of RAM based on the part numbers listed on the A6 chip itself. After a bit of research, iFixit was also able to confirm their findings, using Samsung’s own product guides. The chart shown below is from Samsung’s 2012 Product Solutions Guide (PDF) which lists part numbers of various memory parts they have for sale.
The part numbers of the iPhone 5’s A6 match with the group of 8 Gigabit mobile DRAMs which translates into 1GB of RAM.