ASUS Extreme AX800XT/2DHTV 256MB PCI-E + USB Webcam, GDDR3, 256 bit, 2048 x 1536 pixels ASUS Extreme AX800XT/2DHTV 256MB PCI-E + USB Webcam. Graphics card memory type: GDDR3, Memory bus: 256 bit. Maximum resolution: 2048 x 1536 pixels