In search of graphics card for my Alienware PC.. Help!

Steveval

Reputable
Jul 3, 2014
26
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4,530
Hey guys, my current rig is,

Mobo:ASROCK ALiveNF6g-VSTA
AMD x2 64 4200+ 2.2ghz Dual Core
4 gigs of ram 800mhz each
GeForce FX5200 128mb

I'm looking for a new graphics card that suits this set up. I know the computer is ancient but graphics cards for this are pretty cheap and I just plan on playing older games through this. Any suggestions? My buddy gave me a AMD x2 64 5600+ 2.8ghz Dual core. Will that chip mount into this current setup? Both being AM2 slotted. If they are compatible what are my best options for a graphics card?