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I own a bit old MacBook Pro (Retina, 15-inch, Mid 2014) with 2,2 GHz Intel Core i7, so I'm considering replacing it with a new iMac, but not sure which CPU should I choose.

  1. 3.8GHz quad-core Intel Core i5, Turbo Boost up to 4.2GHz (MNED2LL/A) for € 2,699
  2. 4.2GHz quad-core Intel Core i7, Turbo Boost up to 4.5GHz (Z0TR) for €2,939

I'm a software developer who's stack is:

  • Python
  • Swift for iOS and macOS development
  • Docker
  • PostgreSQL
  • Javascript

I'm concerned if I benefit from purchasing an iMac with i7 for extra €300. Please advise. Thanks!

closed as off-topic by fsb, user11633, bjbk, Tetsujin, Monomeeth Jun 9 '17 at 9:52

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Software development tends to be a very CPU-centric task, but the question is whether or not a few extra GHz is going to buy you significant enough longevity to stave off your next computer purchase by any significant amount. I somehow doubt it. I'd go for the 3.8GHz i5.

...or at least I would, but you mentioned Python. Python is one of the slowest of the various interpreted languages commonly used. It can use all the help it can get. If you do a significant amount of Python coding, I'd go for the faster processor.

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