Msi radeon r9 280 gaming 3g radeon r9 280 gaming 3g graphics processing unit amd radeon™ r9 280 interface pci express x16 3.0 Core clocks 933mhz core (boost clock:1000mhz) (oc mode) 933mhz core (boost clock:972mhz) (gaming mode) 933mhz core (boost clock:933mhz) (silent mode) memory speed 5000 memory size 3072 memory type gddr5 memory bus 384 bits hdcp support y power consumption 250 power connectors 1x6-pin, 1x8-pin recommended psu 500 card dimension (mm) 269x128x37 mm weight (card / package) 849 directx version support 12 api opengl version support 4.3 Multi-gpu technology crossfirex maximum displays up to 6 displays with the use of a dp mst hub memory bandwidth (gb/sec) 240 dvi connectors dl-dvi-i x1max resolution: 2560 x 1600 @60 hz hdmi connectors 1 (version 1.4A) max resolution: 3840x2160 @30 hz 4096x2160 @24 hz mini displayport 2(version 1.2) Max resolution: 4096x2160 @ 50 hz ramdac speed (mhz) 400