"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."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips