Hi,
is there any benchmark test that compares this two Models?
Is this better CPU a big advantage, when im using the macbook for some raw-photo developing?
Thank you for your help!
The CPUs in the 2015 rMBs were the M-5Y31, M-5Y51, and M-5Y71.
Benchmarks below (higher number is better). For comparison, an Intel i3-3110M has a passmark of around 3000.
M-5Y31: 2644
M-5Y51: 2586
likely lack of samples are giving this comparatively low score
M-5Y71: 2969
The 2016 rMBs are a little more difficult to figure out, because it's just been released. Currently, the
only Intel processors listed as mX are:
M3-6Y30 (900MHz, Turbo boost to 2.2GHz). M3 in the rMB has 1.1GHz base clock, Turbo to 2.2GHz.
M5-6Y54 (1.1GHz, Turbo boost to 2.7GHz). M5 in the rMB has 1.2GHz base clock, Turbo to 2.7GHz.
M5-6Y57 (1.1GHz, Turbo boost to 2.8GHz).
M7-6Y75 (1.2GHz, Turbo boost to 3.1GHz). M7 in the rMB has 1.3GHz base clock, Turbo to 3.1GHz.
Based on the turbo clock speeds and processor generation, I stipulate that the rMB is using the M3-6Y30, M5-6Y54, and M7-6Y75, with a higher base clockspeed. The benchmarks for these are below:
M3-6Y30: No samples
M5-6Y54: 3389
M7-6Y75: 3704
Comparitively, the 2.7GHz i5 in the rMBP (I5-5257U) gets a score of 4375, and the 1.6GHz i5 in the MacBook Air (I5-5250U) gets a score of 3628.
TL;DR: What I assume to be the new processors in the rMB are considerably more powerful, and the top end M7 is comparable with the i5 CPU in the MacBook Air. Regardless, if you're seriously contemplating photo development, I'd suggest a 13" rMBP at a minimum -- preferably the 15" rMBP, as that's guaranteed to handle anything you can throw at it.
Hope this helps.