Twin Geforce GTX 660s or One R9 270X

[Orangesareftw]

I was just wondering for my next build which is here:
http://pcpartpicker.com/p/3NZhp
To get another 660 and SLI them or just get the r9 270x alone. Also if there are any changes I should make to that build please let me know!

 

[shnuhh]

660 sli is definitely better than one r9 270x. You should get a Cpu cooler such as the Coolermaster 212 evo. Also, get a 7200Rpm hard drive not 5400rpm.

Getting a r9 280x would be almost equivelant to 660 sli