Hi guys, I'm looking at potentially getting an older Mac Pro (cheese grater design). My main use case is for learning iOS programming (Xcode), while running a note taking app and iBooks. I'm wondering how much of a performance difference I'll notice, if any, between it and the current iMac I have now (27", 2017, 3.4GHz i5, upgraded to 24GB of RAM). I'm not looking for a performance increase but rather a lateral move. Locally, I have found this: https://wilmington.craigslist.org/sys/d/mac-pro-51-6-core-346ghz-24gb/6512133683.html Curious as to what you guys thought? Also, would it also be able to power a 4K display?