I just recently upgrade to an Early 2011 Macbook Pro, with a 2.0 Ghz Quad Core Intel i7 "SandyBridge" processor. It came with 4 GB of RAM, but I quickly upgraded that to 8GB, and have been dying to really see this thing perform. This replaced my old Core2Duo 2.8 Ghz. I expected to see a huge performance increase, and sadly, I have not. I run iStat Menus, and have for quite some time. On my old system, I could see my system spike when rendering video, or exporting large flash movies. I always keep a close eye on what is using up CPU power. WHen I switched to my new machine, I expected to be able to do more, faster. However, in real world use, it doesn't seem any faster. Actually it almost seems to lag in comparison to my old 2.8 Ghz dual core. However, iStat menus, never shows my CPU usage ever moving above 50%. Even when I am running processor intensive stuff. It never seems to get up and go. When I checked "Activity Monitor", same story. You never see those CPU monitors ever jump above 50%. Maybe one core will spike above 50% briefly, but other than that, they all stay relatively low. Why is this? It seems like this machine just never gets up to speed. Is there anyway to run benchmark software to see if this machine is performing as it should? I bought this as a refurbished system from Apple. Could that have anything to do with it? Please help! i need some guidance.