I just ordered a new laptop (Intel core 2 duo 1.6Ghz, +1 gig RAM), but have realised that my computer knowledge is about 5 years out of date. How do you measure dual core performance? ie is a 1.6Ghz dual core roughly equal to a 3.2Ghz single core? I suspect not but haven't been able to find a straightforward non-geek answer to this. I'm wanting to try the Rainbow 6 vegas game (which needs a 3Ghz processor), but haven't a clue wether it would work or not.