NVIDIA®CUDA ™ technology
CUDA technology unlocks the power of the GPUs processor cores to accelerate the most demanding systems tasks such as video transcoding delivering incredible performance improvements over traditional CPUs

NVIDIA®PhysX® technology 
GeForce GPU support for NVIDIA PhysX technology, enabling a totally new class of physical gaming interaction for a more dynamic and realistic experience with GeForce.

NVIDIA®3D Vision™ Ready
GeForce GPU support for NVIDIA 3D Vision, bringing 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. In addition you can watch 3D movies and 3D digital photographs in eye popping, crystal-clear quality.

NVIDIA®3D Vision™ Surround Ready
Expand your games across three displays in full stereoscopic 3Dfor the ultimate inside the game experience with the power of NVIDIA 3D Vision and SLI technologies. NVIDIA®surround also supports triple screen gaming with non-stereo displays.

NVIDIA SLI Technology 
Industry leading NVIDIA SLI technology offers amazing performance scaling for the world's premier gaming solution.

For more information about the product, kindly refer to the link: Inno3D GTX560 Ti 

GTX680-DC2O-2GD5

ASUS GTX 680 DirectCU II: coolest and quietest 28nm card

• All new DirectCU thermal design utilizes five all-copper heatpipes and 20% bigger dissipation area, achieving 20% cooler and 14dB quieter performance than reference
• Acclaimed DIGI+ VRM with 10-phase Super Alloy Power technology delivers precise digital power and enhanced overclocking headroom.
• VGA Hotwire allows you to plug and solder wires on the card’s voltage regulators and accurately read and control Vcore, Vmem, and PLL voltages on a hardware level
• GPU Tweak utility helps you modify and tune boost clock, power target , and fan performance via an intuitive interface

              Kindly refer to this link for more info: Asus GTX680 DCII 2gb ddr5 256bit

Kindly refer to the link for more info: PowerColor HD7950 3gb ddr5 hdmi

PowerColor HD7770 GHz Edition 1GB GDDR5

• Part NumberAX7770 1GBD5-2DH
• Graphics EngineRADEON HD7770
• Video Memory1GB GDDR5
• Engine Clock1000MHz
• Memory Clock1125MHz x 4 (4.5 Gbps)
• Memory Interface128bit
• DirectX® Support11.1
• Bus StandardPCIE 3.0
• Display ConnectorsDL-DVI-I/ HDMI/2x mini DisplayPort

Features:
 Super Alloy Power Enhanced Durability
 OdB Cooling (perfect for building a hushed HTPC)
 GPU Tweak (Real- Time & intuitive graphics tuning)
 1GB DDR3 video memory
 Variety of Connectivity (D-sub/DVI-I/HDMI/HDCP)
 DirectX 11 and OpenGL 4.2 support

Features:
Premium Multimedia and Entry -Level Gaming
Designed from the ground up for DirectX 11 gaming
Fast Performance
Add an extra 1024MB of Memory
3D Blu ray Support
Hardware Video Decode Acceleration

Features:
Afterburner Overclocking Utility
- Support GPU/Memory Clock offset and Power limit control.
- Support in-game video recording.
- Support wireless control by android/iOS handheld devices.
- Support built-in DX11 effect test.
28nm GPU with PCI Express 3.0
- 1st NVIDIA 28nm GPU.
- Support NVIDIA GPU Boost Technology.
- Support PCI Express 3.0
All Solid Capacitor
- 10 years ultra long lifetime (under full load).
- Lower temperature and higher efficiency.
- Aluminum core without explosion.
3DVision Surround
- Support 3 displays in full stereoscopic 3D with a single card.
- Support up to 4 displays with a single card.

Get a taste of Microsoft® DirectX® 11 and hardware tessellation technologies with the class-leading ZOTAC GeForce® GT 610 graphics card. The ZOTAC GeForce® GT 610 delivers an outstanding visual computing experience with perfect high-definition video playback capabilities.

Hardware Blu-ray decoding capabilities enable flawless Blu-ray 3D playback while Dolby® TrueHD™ and DTS-HD™ Master Audio bitstreaming enables bit-perfect audio output for the ultimate audio and visual experience with the ZOTAC GeForce® GT 610 graphics card. HDMI 1.4 support ensures the ZOTAC GeForce® GT 610 is compatible with the latest generation of 3DTV displays.