I looked up sims 3 requirements and that card says it will "maybe" run on 6 out of 10 of the expansion/stuff packs so is there another card that will work with my computer?
edit: I have all expansion/stuff packs
You have a 300W power supply. That alone puts a huge limit on what cards you can use, not to mention you only have a PCIe x16 slot as opposed to a PCIe (2)(2.1)or(3) x16 which will bottleneck the card. My GF runs Sims 3 on her laptop, which has an integrated card, with all but Pets installed, and thought it doesn't run great, it runs well enough to be used. I think you'll be fine. However, you can try waiting for someone else to come along if you're unhappy with my recommendation.