ASUS EAX550HM512, GDDR, 128 bit, 500 MHz, 2048 x 1536 pixels ASUS EAX550HM512. Processor frequency: 400 MHz. Graphics card memory type: GDDR, Memory bus: 128 bit, Memory clock speed: 500 MHz. Maximum resolution: 2048 x 1536 pixels. DirectX version: 9.0