Ati radeon x300/x550/x1050 series memory size .

BNIB COMPAQ PRESARIO CQ57-426SA 4GB RAM 500GB HARD DRIVE
BRAND NEW BOXED WITH MANUFACTURERS WARRENTY- HP COMPAQ PRESARIO CQ57-426SA * AMD DUAL-CORE PROCESSOR E-300 (1.3GHz) * 500GB HARD DRIVE * 4096MB DDR3 SDRAM * DVD OPTICAL DRIVE * GENUINE WINDOWS 7 HOME PREMIUM (64 BIT) * 39.62cm (15.6