Thanks for the answer, as for the OS, I only use Linux/Ubuntu and it will be a snap to download and install a 64 bit system. I guess I should have mentioned this in my question, I gave up on windows about six or more years ago. My reason for the question is that starting in March of 2016 the people at google will cease supporting Chrome for 32 bit systems in Linux/Unbuntu, of course Chromium will still be supported. Just wondering if changing to a higher GHZ cpu would do the trick and all I would need to do. Thanks again for your answer.