On February 20, 2013, it was announced that the PlayStation 4 will utilize 16x4 Gbit (i.e. 16x512 MiB) GDDR5 memory chips for 8 GiB of GDDR5 @ 176 GB/s (CK 1.375 GHz and WCK 2.75 GHz) as combined system and graphics RAM for use with its AMD-powered APU.
see also