Sapphire ATI Radeon HD 4850 512MB GDDR3 PCI-E HDMI

I/O Output: DL-DVI-I+HDMI+VGA
Core Clock: 625 MHz
Memory Clock: 993MHz, 1986 Mbps
PCI Express 2.0 x16 bus interface
512MB /256bit GDDR3 memory interface
Dual Slot Active Cooler
HDMI compliant via dongle
7.1 Audio Channel Support
Microsoft® DirectX® 10.1 support
Shader Model 4.1 support