HP P6230y - upgrade graphics, power supply?

I'm hoping I put this in the right place, if not I hope someone will give me a heads up!

I recently received an HP P6230y desktop from my parents, who replaced it with an iMac. Rather than build my own gaming PC, I've decided to see how well this thing holds up; it's got plenty of power and I am thinking it really only needs a boost in graphics. I was leaning towards one of the two; a Radeon 6950 2GB or a GTX 560 Ti 1GB. I've looked around on the forums and see a new power supply may be necessary; if so, it will be this Rosewill 450W. Good old Newegg.

My question is, which is a better "bang for your buck" graphics card, given that it's really the only upgrade I want to make? The price difference is minimal, so I wanted some expert advice. If there's a different card that may be better for what I need, feel free to suggest. I'm not sold on those, just what I came up with on my own. For what it's worth, I plan on playing mostly RPGs (Mass Effect trilogy, Diablo III, maybe SWTOR), and the lady may play The Sims. Who knows.

Thanks all in advance!
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  1. Best answer
    Your analysis is correct. Add good video (and gaming mouse) and you have a good system. "Radeon 6950 2GB or a GTX 560 Ti 1GB" can't go wrong with either.

    Both will need a new power supply as you note. The video cards each draw max of about 200w, more with overclock.

    AMD Phenom II X4 810, 2.6ghz
    8 GB PC3-10600
    integrated video
    750 GB disk
    300W power supply

    This will give you relative graphic performance on last page and some other card suggestions. Same tier equal similar (not same) performance.,3107.html

    New power supply required. It's very important to get a good, stable power supply. Suggest you skip the rosewill unless you find good reviews and go with this antec vp-450: because of good reviews:
    (Rosewill is Neweggs house brand. Rosewill buys from manufacturers, doesn't build. That isn't bad, but it means they may find another provider with a different design that works poorly at any time so it's hard to know if a part is good or bad.)
  2. Best answer selected by ajohns41.
  3. I appreciate the support and the advice - I'll go with that PSU instead! Thanks!
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