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Model A1419 / EMC 3070 / Mid 2017 / 3.4, 3.5 or 3.8 GHz Core i5 or 4.2 GHz Core i7 Kaby Lake Processor (ID iMac18,3) / Retina 5K display. Refer to the older iMac Intel 27" Retina 5K Display (Late 2014 & 2015) guides as the system is very similar.

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Upgrade Entry Mid 2017 iMac i5 Processor

Is it possible to upgrade the i5 3.4ghz processor in the Mid 2017 Imac? if so, what is the best processor this unit will accept?

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Go with the 4.2 GHz Core i7 (I7-7700K)

Apple iMac "Core i7" 4.2 27-Inch (5K, Mid-2017) Specs

Identifiers: Retina 5K, Mid-2017 - BTO/CTO - iMac18,3 - A1419 -  3070

https://everymac.com/systems/apple/imac/...

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2 Comments:

Thanks @mayer, I am looking at the 4.2ghz i7 but I'm really interested in knowing if this is the limit or if there is a faster processor it will accept.

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Well this will work, I'm sure there are speculative blogs out there that may have experimental stuff.

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Jay will be eternally grateful.
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