GIGABYTE GV-N670OC-2GD

You can test before you buy it. With the performance of this beast, I'm not asking for too much.(This is not a normal 670 version)
Check out yourself:
Allmost equal in performance to GTX680: http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/54705-gigabyte-gtx-670-windforce-oc-review-4.html
Review: http://www.tomshardware.com/reviews/geforce-gtx-670-test-review,3217-7.html

You can play GTA V and Witcher-3 very smoothly with this card. Providing actual in game screen shoot.
Selling reason is I've got a 970G1.

Details:

Brand: GIGABYTE

Model: GV-N670OC-2GD

Interface: PCI Express 3.0 x16

Chipset Manufacturer: NVIDIA

GPU: GeForce GTX 670

Core Clock: 980MHz

Boost Clock: 1058MHz

CUDA Cores: 1344

Memory: Effective Memory Clock 6008MHz

Memory Size: 2GB

Memory Interface: 256-Bit

Memory Type: GDDR5

DirectX 11

OpenGL 4.2

HDMI: 1 x HDMI

DisplayPort: 1 x DisplayPort

DVI: 2 x DVI

RAMDAC: 400 MHz

Max Resolution: 2560 x 1600

3D VISION Game Ready
Yes

SLI Support
SLI Ready

Cooler
3 Fans (windforce 2 cooling system)

System Requirements
Minimum of a 550 Watt power supply.

Power Connector
6-Pin / 8-Pin

Dual-Link DVI Supported
Yes

HDCP Ready
Yes