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WinFast GTX 660

The GeForce® GTX 660 is built for fast and fluid 1080P gaming in the latest DirectX® 11.1 and NVIDIA PhysX® enabled games. Packed with all the Kepler features found in the flagship GTX 680, GeForce® GTX 660 delivers the ideal fusion of power, performance, and affordability.


  • NVIDIA Kepler architecture pushes the limits in graphics processing capabilities, and also creates an extremely power-efficient GPU
  • NVIDIA TXAA Technology
  • NVIDIA FXAA Technology
  • NVIDIA Surround with up to four monitors
  • Revolutionary DirectX 11.1 technology
  • 2GB GDDR5, 192-bit memory interface
  • Support DVI-D, DVI-I, DisplayPort, HDMI
  • PCI-Express 3.0

Kepler GPU Architecture
NVIDIA's Kepler GPU architecture has been designed from the ground up not just for maximum performance in the latest DirectX 11.1 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.

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 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.

TXAA AntiAliasing
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 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 3D Vision® Ready
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 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.

NVIDIA CUDA™ Technology support
CUDA technology unlocks the power of the GPU’s processor cores to accelerate the most demanding tasks such as video transcoding, physics simulation, ray tracing, and more, delivering incredible performance improvements over traditional CPUs.

OpenGL® 4.3 Optimizations and Support
Full OpenGL support, including OpenGL 4.3

Microsoft DirectX 11.1


HDCP Capable
Allows playback of HD DVD, Blu-ray Disc, and other protected content at full HD resolutions with integrated High-bandwidth Digital Content Protection (HDCP) support. (Requires other compatible components that are also HDCP capable.)

Graphics Bus PCI Express 3.0
Memory size 2048MB GDDR5
Core clock Base clock/Boost clock:980/1033 MHz
Memory clock 6008 MHz
Output DVI-D, DVI-I, HDMI, DisplayPort
Memory Interface 192-bit
Memory Bandwidth (GB/sec)   144.2
CUDA Cores 960
HDCP support Yes
Full Microsoft® DirectX®11.1 Shader Model 5.0 Support
NVIDIA Surround with up to four monitors
DirectCompute Support
HDMI Support
Built for Microsoft® Windows 7™ & Vista™
OpenGL® 4.3 Optimizations and Support
Graphics Card Power 150W
Card Dimensions 2 Slot
Package contents WinFast GTX 660 graphics board
DVI to VGA adaptor
1 x 6-pin power cable
Driver DVD
Quick installation guide
System Requirements PCI-Express compliant motherboard with one dual-width x16 graphics slot
One 6-pin PCI-Express supplementary power connectors
Minimum 450W or greater system power supply (with a minimum 12V current rating of 24A)
2GB system memory (4GB or higher recommended)
300MB of available hard disk space
Microsoft Windows7.Windows Vista or Windows XP operation system(32 or 64 bit)
DVD-ROM drive or Internet connection
Software Bundled WinFast Graphics Driver CD (w/ WinFox III) x 1

WinFast GTX 660
OS Language Version Description
VGA driver

Vista 64bit
( 2014/3/25 )
Windows 8/7/Vista/ 64bit Geforce drivers
Total size: [ 270276 KB ]

Vista 32bit
( 2014/3/25 )
Windows 8/7/Vista 32bit Geforce drivers
Total size: [ 214756 KB ]

XP 32Bit
( 2014/3/25 )
Windows XP 32bit Geforce drivers
Total size: [ 178835 KB ]

XP 64bit Edition
( 2014/3/25 )
Windows XP 64bit Geforce drivers
Total size: [ 218554 KB ]

WinFast GTX 660
Language Version Description
Quick Guide
( 2012/11/27 )
WinFast Graphics Series Quick installation Guide
Total size: [ 1660 KB ]
File Separation :
You may install following divided files (download all of the files then execute the .exe file) if you do not have broadband Internet connection.


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  • The adapter, cable and software listed on the web page are for reference only and Leadtek keeps the right to alter, revised information won't be noticed.
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