The Winbond Electronics W632GU6NB-11 is a 2Gbit DDR3L SDRAM with a 933 MHz clock frequency and 20 ns access time. It operates at voltages between 1.283V and 1.45V and is supplied in a 96-VFBGA package.
The Winbond Electronics W631GG6MB-09 is a 1 Gbit DDR3 SDRAM with a 1066 MHz clock frequency and a 1.425V to 1.575V operating voltage range. It is available in a 96-VFBGA package for surface mounting.