It will more than likely have options similar to warcraft 3, allowing you to select your resolution, and color depth, along with in game details, such as shadows, fog, and so on. I remember when Diablo II originally came out, it pushed store bought systems, considering it came out around 99, or 2000.... But yea, I would say an average current day system with a 6xxx or better gpu could play both SC2 and D3 with decent frames...