I recently dumped Mac (and Adobe) for Windows/Affinity and spent big money on a HP Z840 with 2 x Xeon 2.1GHz processors each with 8 cores and 16 multi-threaded cores, (totalling 32 CPU cores running as 2.1GHz) 32GB RAM, Nvidea GTX 1080i Video Card, running on an ultra fast HP SSD (3000MB/s read speed/2000MB/s write speed).   A friend came over today and we compared speed of Affinity Photo opening a very large PSD file, and saving a JPEG of that file. He had his 4 year old Macbook Pro running a