Features:

• Kepler GPU Architecture
• NVIDIA's Kepler GPU architecture has been designed from the ground up not just for maximum performance in the latest DirectX 11 games, but optimal performance per watt. The new SMX streaming multiprocessor is twice as efficient as the prior generation and the new geometry engine draws triangles twice as fast. The result is world class performance and the highest image quality in an elegant and power efficient graphics card.
• NVIDIA GPU Boost
• Up until now, GPUs have operated at a fixed clock speed when playing 3D games, even if they have the potential to run faster. GPU Boost intelligently monitors graphics work load and increases the clock speed whenever possible. The result is that the GPU always performs at its peak and you get the highest framerate possible.  
• NVIDIA Adaptive Vertical Sync
• Nothing is more distracting than framerate stuttering and screen tearing. The first tends to occur when framerates are low, the second when framerates are high. Adaptive V-Sync is a smarter way to render frames. At high framerates, V-sync is enabled to eliminate tearing, at low frame rates, it's disabled to minimize stuttering. It gets rid of distractions so you can get on with gaming.
• NVIDIA Surround with Up To Four Monitors
• Nothing is as breathtaking as playing your favorite games across three monitors. At 5760 x 1080, the expanded field of view fully engages human peripheral vision and provides for the most immersive experience in racing and flight simulators. Add in a fourth display to keep tabs on chat, email or web while you are gaming.
• Two New Anti-aliasing Modes: FXAA and TXAA     
• Antialiasing helps to smooth out jagged lines in games. Existing techniques like MSAA are effective at removing jagged lines in still images but struggle with crawling and shimmering artifacts when the player is in motion. TXAA is a new antialiasing mode that combines MSAA, temporal filtering, and post processing for the highest edge quality and minimal shimmering during gameplay.
• NVIDIA 3D Vision® Ready2
• NVIDIA 3D Vision brings a fully immersive, stereoscopic 3D experience to the PC. A combination of high-tech wireless glasses and advanced software, 3D Vision transforms hundreds of PC games into full stereoscopic 3D. Get up to 2x monitor and keyboard brightness with NVIDIA 3D LightBoost technology4. In addition, you can enjoy 3D movies and 3D digital photographs from 3DVisionLive.com in eye popping, crystal-clear quality.
• NVIDIA SLI® Technology3
• Used by the most demanding gamers worldwide, SLI lets you link up to three GeForce GTX 660s together for astounding performance. And with NVIDIA’s track record for fast and frequent software updates, you’ll not only get the best performance in existing games, but future games too.
• NVIDIA PhysX Technology
• Full support for NVIDIA PhysX technology, enabling a totally new class of physical gaming interaction for a more dynamic and realistic experience with GeForce.

Specifications:

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Product Code	ENGTX660/DC20/2
Specifications
GPU Engine Specs
CUDA Cores	960
Base Clock (MHz)	980
Boost Clock (MHz)	1033
Texture Fill Rate (billion/sec)	78.4
Memory Specs
Memory Clock	6.0 Gbps
Standard Memory Config	2048 MB
Memory Interface	GDDR5
Memory Interface Width	192-bit GDDR5
Memory Bandwidth (GB/sec)	144.2
Feature Support
OpenGL	4.3
Bus Support 1	PCI Express 3.0
Certified for Windows 7	Yes
Supported Technologies2	3D Vision, 3D Vision Surround, CUDA, DirectX 11, PhysX, SLI, TXAA, FXAA, Adaptive VSync, GPU Boost
3D Vision Ready	Yes
Display Support
Multi Monitor	4 displays
Maximum Digital Resolution3	4096x2160
Maximum VGA Resolution	2048x1536
HDCP	Yes
HDMI4	Yes
Standard Display Connectors	One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Audio Input for HDMI	Internal
Standard Graphics Card Dimensions
Height	Length-9.5 inches
4.376 inches
Width	Dual-slot
Thermal and Power Specs
Maximum GPU Tempurature (in C)	97 C
Maximum Graphics Card Power (W)	140 W
Minimum System Power Requirement (W)5	450 W
Supplementary Power Connectors	One 6-pin
3D Vision Ready
3D Blu	Ray-Yes
3D Gaming	Yes
3D Videos	Yes