Looking for a new graphics card

[testedtwice]

I've been looking for a good graphics card to play GTA IV, The Sims 3, MAYBE Skyrim; stuff like that, for around $100. There's not a whole lot out there for that price. My current card can handle GTA pretty decently on high settings (Evga Geforce GT 640), but it's still a bit laggy. I am not rich and can't really afford an obscenely expensive graphics card. Here are my computer specs.

Dell XPS 8500
Processor: Intel Core 3rd Generation i5-3350p (Quad-Core) clocked at 3.1GHz.
RAM: 8GB DDR3
PSU: Stock 460 watt

I've been looking at a few graphics card, but I don't know how good they are as I'm not exactly a computer expert. Here are the cards I've been looking at:

ASUS Radeon HD 6670 1GB
EVGA Nvidia GeForce GTX 650 1GB
EVGA Nvidia GeForce GTX 550 Ti 1GB

If these cards aren't very good, what would you recommend? :\

 

[rolli59]

HD7770 would be my choice if you can stretch a little http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007709%20600286767%20600298539&IsNodeId=1&name=Radeon%20HD%207770%20GHz%20Edition
Performance comparison http://www.techpowerup.com/reviews/MSI/GTX_650_Power_Edition/27.html

 

[jessterman21]

HD7770 would be my choice if you can stretch a little

+1

That's your best option. You could get a GTX 650 or HD 7750, but you won't see much of a performance boost.

 

[TradingTiger]

I'm curious which video card upgrade works for XPS 8500? There is a power supply limitation, only 450W.

 

[djangoringo]

yeah dell psu...probably doesn't even have a pci-e connector nor the power for that