Sounds like the base £2500 is calling you. For me it was terrible value for money. I got a maxed out 2015 for £2300 and could not be happier. For the money saved I got a 34" 2017 monitor that solves any display issues
Also no machine from apple is from 2017, some are as bad as 2013, that's just the way it is. That's Tim for you.....
As for a MacBook Pro spinning up its fans......I've never owned one that did not. Design form factor over practicality , and I've been working with macs for the last 10 years at work. Be it a MacBook Pro, iMac or Mac Pro, they howl when actually used for content creation.
Sorry if you bought a machine from apple for 4K content...why? I genuinely ask. And I genuinely ask cause you bought a machine with intergrated graphics.....and are complaining about it getting hot pushing such content.....chip that is for you is kaby lake, its integrated graphics are for 4k from my understanding. Yup your 2015 cpu, already outdated in 2015, will struggle....get hot and spin the fans up.
Same will happen if you try gaming on it.... a surface also overheats btw
My i7 2012 RMBP 2.3ghz does 4k just fine...
2012...
5 years old...
its Chrome - zero to do with the hardware.