ASUS K55N 15.6" AMD Quad-Core 500GB Laptop AMD Quad-Core A8-4500M 1.9GHz processor; offers incredible processing performance 4GB of DDR3 memory; delivers amazing task handling power; 500GB hard drive; suffices your storage demands 15.6" LED backlight display; dishes out incredible display quality Radeon HD 7640G GPU; provides wonderful detail quality on your different programs DVDRW drive; aids you in playing or burning different optical discs