Simple question: How much RAM do you think is necessary for my build machine?
I have a 2012 Mac Mini with 2.3GHz i7 QuadCore with 4GB RAM. I run dual HD displays, 4 virtual desktops (so that's 8 "screens"), Yosemite. I'm always running XCode, Simulator, two Safari windows with several tabs each, Mail, iTunes, Terminal, Preview/PDFs, and then often editing images with Pixelmator. It's a super-productive environment, but it can get slow, or maybe it's just me. Or XCode itself.
I'm considering the jump to 8GB (or more?), and looking for insight on whether it's going to improve performance significantly. Thoughts?