R9 270X Powercolor TurboDuo 2GB or Gigabyte GTX 660 2GB?

[Stylo_432]

Links to the cards :
R9 270X : http://www.powercolor.com/Global/products_features.asp?id=524
GTX 660 : http://www.gigabyte.com/products/product-page.aspx?pid=4436#ov
The prices are roughly the same,but which is better.I would like to play games like Battlefield 4,3
AC Black Flag,Call of Duty Ghosts,Tomb Raider and so on on Ultra to High settings.
Other parts :
-MOBO : B85 Gigabyte G1.Sniper B5
-CPU : i5-4440, 3.1GHz
-HDD : 'HDD SATA3 7200 1TB WD Blue WD10EZEX
-RAM : DDR3 2x4GB 1600MHz Kingston HyperX Beast CL9

 

[nickbandit]

270X is faster. it performs like a 760, if not a bit better .

 

[deathcall666]

Actually on general performance the gtx 760 is 5% faster than r9 270x which is way faster than a gtx660(ti).
Take the r9 270x. Its just 170-180$ on newegg.