OK so I have a few cards in mind Radeon HD 7750/6650 or Nvidia geforce gt(x) 640 64 bit gddr5 (1)2gb 650 but there is one on Amazon its a gt 640 and it says its 128 in the description but on gigabytes site it says 64. Specs
Intel Core 2 Quad Q9200 2.5Ghz
4GB DDR2 800 Memory
750 GB HDD
On Windows experience it says my processor and ram are 7.9 and is this good enough to run 2013 games?
What ever price is best for you, the 7750 and 640 are fairly even. You should be able to run games fine, but another 4gb RAM would help