Sapphire HD 7770 GHz Edition OC 1G D5
80% new, 100% work
128 bit Memory Bus
1100 MHz Engine Clock
1250 MHz Boost Engine Clock
GDDR5 Memory Type, 1GB Size
5000 MHz Effective
4096x2160 Pixel DisplayPort Resolution
4096x3112 HDMI Resolution
1 x DVI-I
1 x HDMI
1 x DisplayPort