Need help selecting new graphics card

[Judicature]

Hello, I was wondering what the best graphics card would be for my set up without bottlenecking. My setup is

AMD Athlon 64 X2 Dual Core Processor 6400+ 3.21 GHz, with 4gigs of RAM

Power supply is a 550 watt

Currently using GeForce 8600 GTS

Any help would be awesome, thanks in advance.

P.S. My spending range is $300-400

 

[Maziar]

Hello and welcome to the forums
What resolution do you play at ?

 

[Judicature]

Hello and welcome to the forums
What resolution do you play at ?

I currently play at 1280 x 1024, Thanks for the welcome. =)

 

[Maziar]

ATI HD 5770 would be a good choice and will give you a huge boost from your current card

 

[wa1]

HD5750 is enough for your resolution, but HD5770 good for a long term, don't worry too much about bottleneck, you will see a HUGE performance boost from 8600GTS, just like Maziar said above...

 

[Judicature]

Best answer selected by Judicature.