Hmm, so I have 4GB of RAM, 2.2GHz and a... triple-core processor? Sorry, not sure what the CPU's are really... All I know is that compared to your numbers, my specs definitely seem like a big problem if I want to get to another planet. Sometimes my Munar rockets lag too much to fly manually, sometimes even MechJeb can't, and my rockets are pretty well built with a minimal amount of parts...