What is a good graphics card under 150$ for this setup?

[Boogyman]

I'm currently building a budget gaming rig.
I already got the ff:

Gigabyte GA-970A-DS3P
AMD FX-6300
and my current GPU for now is
Nvidia GT 630

I'm planning for a GTX 750 2gb gddr5
and strictly under a budget of 150$ below for the gpu only
because im also planning to get a
corsair vs650w for psu and
corsair carbide 200r for casing

can anyone suggest a better graphics card? im also looking forward on amd graphics card
and give me some of your thoughts on my build

thanks for the thoughtful answers and suggestions

 

[Zerk2012]

R9 270

 

[Boogyman]

R9 270

Why?

 

[Dark Lord of Tech]

What sites do you use what currency?

 

[Zerk2012]

http://gpuboss.com/gpus/Radeon-R9-270-vs-GeForce-GTX-750 It's about a 30% performance increase over the 750.

 

[Dark Lord of Tech]

GPU Boss and CPU boss are poor reference sites.