I recently upgraded from a late '08 MacBook with 8gb ram to a 2010 MBP with 4gb, Mavericks on both machines. The MBP is really laggy and freezes up, it's ridiculous. On the MBP, Activity Monitor says that 3.99 of my 4.0 memory is used when all I've got open is a handful of tabs in Chrome. The max memory I can install is 8gb, and I've got it ordered but I'm worried it isn't going to be enough. Santa is bringing me a Samsung 840 Evo for Christmas as well. Do you think that configuration will be sufficient? I use Aperture and iMovie a lot, and right now this setup just sucks. The older Macbook was slow, but consistent. This one hangs and freezes. Is the ram going to fix all my problems?