A GT430 isn't a gaming card.
Afaik, your PSU isn't very good, but a weak card like a GT240 (DDR5 version!) will be a decent improvement.
What is your budget? You could always replace the PSU as well, then get something like a GTX460 (your e6500 will bottleneck anything stronger).
Those GPUs will have similar performance. The Coolermaster GX series is not good. The 650W version was described by HardOCP as "a polished turd in a box." Stick to Seasonic, Antec, Corsair, XFX, or Enermax/LEPA; or perhaps FSP if it has some level of 80+ certification for efficiency and full range active PFC (no little voltage switch).
what do u think of this one ? i wanted to get the gx because i wanted to complete the case ( HAf 912 Advanced all CM fans , Hyper 212+ with 2 sickle flow 120mm CM fans ) with another product by Coolermaster but it's the second time i hear that the GX series ain't tht good..
Thanks for the advice m8
That one would be an excellent choice. Seasonic doesn't know how to make a bad PSU.
Coolermaster cases have some nice designs, but every one I ever bought was poorly executed, with minor quality issues like untapped screw holes, panel misalignment, loose tool-free mounts, etc. None made the case unusable, but I got tired of it; now I get mostly Rosewill cases (plus my Enermax Hoplite, from HardwareSecrets after they reviewed it). Coolermaster puts liar labels on some of their PSUs, so in general I don't think they deserve my business. I'm not going to throw away the Hyper212+ I bought a couple years ago before I came to this conclusion, but I won't buy another.