ASUS GTX680 DirectCU II TOP Edition 1201MHz 2 GB GDDR5 PCI Express 3.0 Graphics Cards GTX680-DC2T-2GD5 - Red/Black Staggering 1201MHz Boost Clock 20% cooler and 14dB quieter performance with ASUS exclusive DirectCU II thermal solution ASUS DIGI+ VRM technology with 8+2 phase Super Alloy Power for precise digital delivery and enhanced overclocked headroom. (compared to 4+2 phase in reference card) VGA Hotwire hardware overvolting and GPU Tweak real-time overclocking.