I demo'd a 15 inch MBP today in store. It was the Touch Bar and Touch ID 2.6GHz 6-Core Processor Radeon Pro 555X with 4GB of GDDR5 memory 16GB 2400MHz DDR4 memory 256GB SSD storage And I put it against my 1967 Macbook Pro 2015 2.9 GHz Intel Core i5 8 GB 1867 MHz DDR3 Intel Iris Graphics 6100 1536 MB The main issue I have is FCPX 10.3.1 - on my Old Pro its unusable when using 4k clips, and laggy in any FCPX projects that last around 8 mins or more EVEN WHEN TRANSCODING. I plugged my USB 3 into the NEWEST mac to see how it might perform and opened the library in the shop. in their newer slicker FCPX 10.4.1 I noticed the same issues: 1. Delay when hitting space bar to play project. (Similar for both) 2. Delay when selecting the different view panes in FCPX i.e. show library, show effects etc. 3. Rendering was almost exactly the same speed. 4. 15 was marginally able to cope with playback of 4k. Surely the 15 inch should race and be a noticably faster machine????? Noting that 32gb wont make any diff to FCPX I was shocked I could have spent £2345 approx on a machine that would not be much better. Certainly to me - even the guy in the Mac Store was like "Oh, these two machines look to be performing about the same" And where did £3k for a better MPB suddenly come from, have we gone to another planet!