Hello, I bought a new 2017 i7 4.2 ghz 8gb ram ,512 ssd, radeon pro 580Imac. My question is i might be wrong but im suspicious about its performance, i didn't run some tests. The reason im suspicious is as u know according to your configuration os x puts u at some level of scaling at that 5 levels. I have a macbook pro 2016 with i7 2.5 ghz 16gb ram. My macbook pro is at 4th level of that scaling levels according to its config. But my 2017 imac with a higher config stays at 3rd level where i was expecting at the 5th level. Plus i play a social game called Secong Life. And in that game it puts u at a graphic level according to ur configuration. That game puts me in the same level of graphic setting with my 2016 macbook pro at Imac 2017 4.2ghz. Now my question is does that 8 gb difference makes that difference? I doubt that but i am lack of that knowledge so i wanted to ask you guys. Helps or comments appreciated. Coz if its some kind of performance issue i want to return it back before that time ends. Thank you very much