ALPHA-TEK RADEON HD4850 1GB GDDR3

• Microsoft® DirectX® 10.1
• Core Clock: 625 MHz
• Memory Clock:993MHz,1986Mbps
• Memory Size: 1GB GDDR3
• Memory Interface: 256bit
• I/O Output: VGA+DL-DVI-I+HDMI
• Dual Slot Active Cooler
• ATI Stream Technology(Fast Video Transcoding 3.5 times faster)

  ALPHA-TEK RADEON HD4850 512MB GDDR3

• Microsoft® DirectX® 10.1
• Core Clock: 625 MHz
• Memory Clock:993MHz,1986Mbps
• Memory Size: 512MB GDDR3
• Memory Interface: 256bit
• I/O Output: VGA+DL-DVI-I+HDMI
• Dual Slot Active Cooler