Hi everyone, I am upgrading from a MacBook Pro that is several years old. (It still has a DVD drive on it) I decided to upgrade to the 2017 15" 2.8Ghz model with upgraded Radeon 560 video card and upgraded 512 SSD. I ordered it a few days ago. I decided NOT to get the 2.9Ghz model because I thought the only difference was a 100Mhz speed increase. Today I decided to browse the Apple site again, and I noticed that the 2.9Ghz model also has 8MB cache, while mine only has 6MB. I tried to cancel the order, but it is already in processing. Now I am wondering, did I make a big mistake here? Is 8MB cache compared to 6MB a big difference? (It would have only been $80 more to get the 2.9Ghz with more cache.) I am thinking maybe I should return it when it gets here and order the other one? I appreciate any info!