"The GeForce GT 440, an entry-level DirectX 11 video card, can come with two memory configurations: 512 MB GDDR5 running at 3.2 GHz (51.2 GB/s) or 1 GB DDR3 running at 1.8 GHz (28.8 GB/s), both costing exactly the same. So, which is the better option, a GeForce GT 440 with less but faster memory, or a GeForce GT 440 with more but slower memory? Check it out."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips