So I talked about this in the other thread but I've done a few more tests and I get the same result each time. Both machines are high end Spec- the AMD 560 Card MBP vs the 750m Nvidia. What's tested-- Well I call this the Civ VI test. Play Civ VI and set up a map on Huge. Then time each turns processing time. I sit both computers side by side. It's not that the results are the same-- or even close. The older MBP - 3 years mid/late 2014 is FASTER by about 30%. What are possible reasons for this? The AMD 560 should blow away the 3 year old Nvidia. They are both the same memory- 16 gig. Iris pro in the older machine (maybe the GPU is not being used).... Any ideas?