Install the game, see how it plays. If you like it, keep it how it is. If not youtube some Diablo III videos and see what the graphics are like on other people's comps. If you really want better graphics, then start researching what's best on your box. Altex only sells off brand RAM(unless that changed since I worked there) , and it's not anywhere near as good as you can find online. First thing I would do is to start researching your board, and try and find out what is proven to be the best RAM for it. There's almost always a review on every board. If not find one that is similar. Make sure you have an ample power supply to run your video card!