MSI Radeon R9 280X GAMING 3GB GDDR5 384-Bit HDMI 2x Mini DisplayPorts DL-DVI-I PCI-Express 3.0x16 Video Graphics Card.Model Number: Radeon R9 280X GAMING 3GKey Features:Core/Memory - 1000MHz Core (Boost Clock:1050MHz) (OC mode)- 1000MHz Core (Boost Clock:1020MHz) (Gaming mode)- 1000MHz Core (Boost Clock:1000MHz) (Silent mode)- 3072 GDDR5 6000MHz MemoryVideo Output Function- Dual-link DVI-I x 1- HDMI x 1 (version 1.4a)- Mini DisplayPort x 2Specifications:GRAPHICS PROCESSING UNIT AMD Radeon R9 280XINTERFACE PCI-Express x16 3.0CORE CLOCK- 1000MHz Core (Boost Clock:1050MHz) (OC mode)- 1000MHz Core (Boost Clock:1020MHz) (Gaming mode)- 1000MHz Core (Boost Clock:1000MHz) (Silent mode)MEMORY CLOCK SPEED 6000 MEMORY SIZE (MB) 3072 MEMORY TYPE GDDR5MEMORY INTERFACE 384-bitsHDCP SUPPORT YesPOWER CONSUMPTION 250POWER CONNECTORS 1x6-Pin, 1x8-PinRECOMMENDED PSU 500CARD DIMENSION (MM) 269x128x34 mmDIRECTX VERSION SUPPORT 12 APIOPENGL VERSION SUPPORT 4.3MULTI-GPU TECHNOLOGY CrossFireMAXIMUM DISPLAYS Up to 6 displays with the use of a DP MST HubMEMORY BANDWIDTH (GB/SEC) 288DVI CONNECTORS DL-DVI-I x1 Max Resolution: 2560 x 1600 @60 HzHDMI CONNECTORS1 (version 1.4a)Max Resolution: 3840x2160 @30 Hz4096x2160 @24 HzMINI DISPLAYPORT2 (version 1.2)Max Resolution: 4096x2160 @ 50 HzRAMDAC SPEED (MHZ) 400ACCESSORIES INCLUDED 1x 8-Pin to Dual 6-Pin Power Cable, 1x 6-Pin To Dual 4-Pin Power Cable, and 1x CrossFire Bridge