Sapphire 11189-02-20G Radeon HD 6770 Graphic Card - 850 MHz Core - 1 GB GDDR5 SDRAM - PCI Express 2.0 x16 - 4800 MHz Memory Clock - 2560 x 1600 - CrossFireX - Fan Cooler - HDMI - DisplayPort - DVI. The SAPPHIRE HD 6770 FleX delivers a true SLS (Single Large Surface) work area without the need for costly DisplayPort monitors or Active adapters. The board can also support up to four simultaneous, independent monitors if you choose to include the use of a DisplayPort monitor or active adapter.