When coming to a new graphics card, you need to decide what type of games you play. GDDR3 memory is somewhat slow compared to the GDDR5 cards. The more memory the better. The wider the bus width the better, the faster the memory and GPU the better. But like I said, it's all about the types of games you play. I brought the XFX HD 6850 so I could play Dragon Age: Origins maxed out @ 1080p settings. But if you are wanting to play the latest games such as MW3, BF3 and Skyrim, then I would save to buy a new, faster card.