Hi guys. I own a 2011 MBP 2.2GHz i7 with 4GB of RAM. Recently I got VMware Fusion and Windows 7 Ultimate. The question is, what is the best setting for the VMware to run heavy applications? Currently I set it to 2 Cores and 2.5GB of RAM. (VM warns not to set over 3.5GB of RAM) The setting for the RAM is anything what you want in the range of memory you have. However, my question is the CPU. Because its a quadcore and has hyperthreading technology, the computer sees it as 8 cores. The setting for VMware is: 1 Core 2 Cores 4 Cores 8 Cores Do you think using 4 physical cores and 2.5GB RAM is necessary? I haven't ran much heavy app yet on 2 cores, 2.5GB. I'm worried that using 4 cores can actually make my OSX much more heavier. (Using 2 cores sometimes lags between OSX and 7) What do you guys think?