I was unstable between my 21.5 "iMac and my MacBook Pro. But now I have changed, 27” 5K iMac 3.4 GHz 1 TB Fusion Drive or 2.3 GHz 256 GB SSD 13” 2018 MacBook Pro with touchbar? I will use it for programming and basic indie games. I am a student. I have an iPad for mobility.