Real Estate Due Diligence Checklist Pdf. The difference between the graphics card and hard drive do not matter and should not be critical points in your decision, here's why: The extra 1GB in VRAM between the 650Ms provide no significant difference over the other; don't worry about the amount of VRAM but do make sure you get the 650M over the 630M. The HDD is an easy aftermarket upgrade - You can definitely find a better price for possibly even more memory and it's pretty simple to install; this is especially important if you're planning on making the switch from an HDD to an SSD. In fact, there are a couple sales on some SSDs going on right now that I could link you to if you wanted. Foxit Reader Pro V2.3.2008.2825 there.