ASUS GeForce® GTX 660 DirectCU II dual-fan performance graphics DirectCU achieves 20% lower temps with direct-contact copper heatpipes and much quieter than referencePremium alloys in power delivery components defeat heat for cards that run faster and last 2.5 times longer than referenceGPU Tweak helps you modify clock speeds, voltages, fan performance and more, all via an intuitive interface Shop Modal header Deploy the Cool. Reign in Silence ASUS Exclusive Innovation DirectCU II 20% cooler and 3X* quieter Flattened copper heatpipes make direct contact with GPU surfaces so heat is dissipated more efficiently, delivering 20% cooler and 3X quieter performance with twice the dissipation area and 6X greater airflow than reference. *Equivalent to 14dB and performance varies depending on system configuration OC-selected 1085 MHz core 1085 MHz Boost clock for better performance and outstanding gaming experience Super Alloy Power Enhanced durability and cooling Exclusively-formulated alloy components boost performance by reducing power loss, enhancing durability, and achieving cooler operation. Choke concrete cores eliminate buzzing sound under full load while capacitors assure a 50,000-hour lifespan: equivalent to 2.5 times longer than traditional capacitors. GPU Tweak Real-time intuitive graphics tuning Shows detailed specs and actual card status with GPU-ZMonitoring widget provides real-time detailed multi-parameter infoAutomatically checks and updates drivers and BIOS versions Gigantic 2GB GDDR5 Memory On-board memory for the best gaming experience & the best resolution Graphics GPU Features Powered by GeForce® GTX 660 NVIDIA® GPU Boost Push the breathtaking performance of GeForce® GTX graphics cards to new levels with NVIDIA® GPU Boost. This technology dynamically maximizes clock speeds to bring out the best performance in every game. NVIDIA® Adaptive V-Sync Get more than just faster frame rates. Get ultra-smooth gaming every time with NVIDIA® gaming innovation Adaptive Vertical Sync. This technology dynamically adjusts vsync to current frame rates for maximum playability. NVIDIA® PhysX® Ready Play games with advanced effects such as blazing explosions and lifelike characters with 10X faster switching between graphics and physics processing, enabling more complex effects to be rendered in real time. SLI Support Multi-GPU technology for extreme performance. NVIDIA® 3D Vision™ Surround Ready Transform hunreds of PC games into stereoscopic 3D and enjoy immersive full HD 3D gaming across three displays at an incredible 5760x1080 resolution. PCI Express 3.0 Delivers double the bandwidth per lane of PCIe 2.0 for faster GPU-CPU communication. Microsoft DirectX 11.1 API (feature level 11_0) Brings new levels of visual realism to gaming on the PC and get top-notch performance. Microsoft Windows 8 compatible Gives you access to advanced computing experiences with the latest operating system so you get more done with your PC. I/O Ports Highlight 1x Native HDMI 1x Native DisplayPort 1x Native Dual-link DVI-D 1x Native Dual-link DVI-I