his hd 4350 silence (full hd 1080p) 256mb (64bit) ddr2 dual link-dvi & tv (hdcp) pcie (rohs) cooling heatsink gpu rv710 gpu clock 600mhz memory / clock 800mhz stream processing units 80 memory 512mb/256mb ddr2 64bit directx version dx10.1 shader model version sm4.1 anti-aliasing up to 12x custom filter anti-aliasing ramdacs dual 400 mhz 30-bit high definition h.264/avc, vc-1, divx and mpeg-2 decode acceleration crossfiretm support ati crossfirextm multi-gpu support for highly scalable performance bus type pci express x16 (pci express 2.0)