Which graphic card would be best for my Asus M5A97 MB

[anti187]

Hello,
I'm currently looking to purchase a graphic card but im stuck which to go for from the following list

MSI R7850 Power Edition 2gb
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127688

Asus GTX560Ti DirectCU II 1gb
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121424

SAPPHIRE HD7850 2GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102999

XFX Radeon HD6950 1GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150523

Gigabyte GeForce GTX 660
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125443

all these card is in my budget of Rs. 17000 INR any other suggestion of card in my budget will be appreciated.And the gigabyte is cheapest among all @ 15000

Please suggest about going with Nvidia Or ATI card

My current Specification which i bought are below

CPU: AMD Phenom II X 4 965
MB: Asus M5A97 (non Pro)
RAM: Corsair XMS3 2x2gb 1600Mhz
PSU: Corsair GS600
HDD. Segate 500GB
Case: NZXT Phantom 410
ODD: Asus 24x DVD RW

 

[refillable]

I personally would go for the MSI 7850, but I am wondering how much price difference are there between the MSI and the Sapphire?

 

[anti187]

not much difference
and what about nvidia i heard they perform better than AMD