MSI 1024MB GDDR5/ATI HD5870/Military Class/Extreme Design R5870 Lightning II Graphics Card Build to be perfect. Custom PCB + 15-phase PWM + MSI's proprietary TwinFrozr II cooler provides up to 16C cooler and 21.5db quieter performance vs. reference design HD5870 GPU, 1600 Stream Processing Units, Core clock 900MHz, 1024MB 256-bit GDDR5 memory at 4800MHz. 2x DVI-I + HDMI + DisplayPort Supports over-voltage function of GPU with MSI's Afterburner software. Up to 30% graphics performance boost! Military Class Components: Solid State Choke, Hi-C CAP, All Solid Cap. DX11-ready, ATI Stream Technology, ATI Eyefinity, 2 and 3-way Crossfire ready.