Radeon™ HD 4870 Sonic

• Bus interface: PCI Express® 2.0
• Memory Support: 512MB GDDR5/1024MB GDDR5
• Memory Interface: 256 bit
• Sonic Memory / Core Clock: 3800MHz (950 x 4) / 750 MHz
• Turbo Memory / Core Clock: 4000MHz (1000 x 4) / 775 MHz
• RAMDACs: 400 MHz
• Full Microsoft® DirectX® 10.1 Shader Model 4.1 support
• Dynamic geometry acceleration
• Game physics processing capability
• ATI PowerPlay™ technology
• ATI CrossFireX™ Multi-GPU Technology
• ATI Avivo™ HD video and display technology
• HDCP capable
• HDMI function via dongle
• Built for Microsoft® Windows Vista™