Last night I had a chance to sit down with my new Penryn Macbook.
First, no benchmark scores. These are simply my observations. I am comparing this against my previous Macbook which was the 2.2 GHz version with 2 GB of RAM installed.
First off, definitely more zippy. Not much more but I could tell the difference when loading web pages.
DVD Ripping and encoding, faster. The internal fan went on a few times but didn't stay on the entire time like in the old Macbook.
Programs also load slightly faster.
The bottom feels cooler but to tell you the truth, it isn't that much cooler. It's still gets pretty warm.
Battery life? Don't know yet. I haven't been able to run it down yet.
My recommendations:
1. For those who can return their old Macbooks and not pay the restocking fee, Do it! It's worth the upgrade!
2. For those who will have to pay a restocking fee, purely a judgement call. You will have to decide if the extra money is worth the slightly better performance. Personally, I feel comfortable knowing that I have the latest version. If you have the extra money and don't mind paying the restocking fee, I would say go for it. If you are dead set against paying, be happy with your current Macbook. It's not really such a bad device after all.