Graphics Engine AXRX 550 2GBD5-DH Video Memory 2GB GDDR5 Stream Processor 512 Units Engine Clock(OC) up to 1071MHz with boost Engine Clock(STD/Silent) Memory Clock 1500MHz x4 (6.0 Gbps) Memory Interface 128-bit DirectX® Support 12 Bus Standard PCIE 3.0 Standard Display Connectors DL DVI-D/ HDMI/ DisplayPort