I have a new MacBook Pro 15" 2018 model with 32GB RAM, 2.9Ghz Intel Core 9 processor, Radeon Pro 555X 4MB Video Card and 1TB SSD with External 12TB storage array and have no issues with FCPX. Works great with 4K, Prores and 1080P is a piece of cake. Actually the Prores is even easier on the...