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Model A1419 / EMC 2806 / Late 2014 or Mid 2015. 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 (ID iMac15,1); EMC 2834 late 2015 / 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 (iMac17,1) All with Retina 5K displays

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Which i7 CPU suitable for iMac Retina 5K Late 2014

Hi,

I have i5 iMac Retina 5K Late 2014, I want to upgrade the CPU, but what is possible i7 CPU ?

Can anyone tell me? cheers.

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You are limited to what Apple used in your system series, so looking at EveryMac listing for your models listing: iMac15,1

We can see the 4.0 GHz Core i7 (I7-4790K) is the best CPU Apple offered.

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you can't use firmware to further upgrade to newer CPUs? Assuming you do not exceed power limitations?

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@Nik ath - Apple's firmware is not directly accessible (closed), as such you can't modify it like other PC's which have a BIOS user interface of some sort. Apple has made a large effort to protect the firmware from being altered or copied.

Thats indépendant of what the rest of the systems hardware is able to support which is also a large factor.

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