Bus StandardPCI Express 2.0 Video MemoryDDR3 4096MB Engine Clock700 MHz Memory Clock1333 MHz Memory Interface128-Bit D-Sub Max Resolution2048 x 1536 DVI Max Resolution2560 x 1600 D-Sub OutputYes x 1 DVI OutputYes x 1 HDMI OutputYes x 1 HDCP SupportYes Low Profile Bracket BundledYes (1 slots x 2) Accessories1 x Driver CD 1 x Quick Guide.