Unless Dell has one of their free upgrades of another GB of RAM, I'd buy another stick after you get the machine, Dell, like most mfg, really marks up this stuff. Once you get the machine you can do a post about what to buy and where you'll get the best prices if you're not sure. Agree you definitely need another GB. I would go with the AMD speed is speed, like with cars, all else being equal, if for the same amount of money you can get a faster car, why wouldn't you even if you'll not likely to notice it? Never know one you might want that little extra push.