Switching from desktop to laptop for editing

I've been editing on a circa 2009 MacPro with four 800GB HD's in a RAID configuration. It's been a reliable beast but it's getting old and I'm thinking about switching to the newest MacBook Pro with 3.1GHz quad-core 7th-generation Intel Core i7 processor, Turbo Boost up to 4.1GHz  -  whatever "Turbo Boost" is - almost sounds like getting "true coat" on your car.

The friendly Apple people assure me that the laptop will work fine editing full-length feature films in 4k RAW.

Has anyone made the switch? And if so, what are your thoughts?