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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Upgrading Processor on Late 2015 iMac 27

Late 2015 iMac 27 Retina 5k

I have two iMac 27's. One has an an Intel Core i7 processor.

The other one has an Intel Core i5 processor.

The speed difference is noticeable, so I'd like to upgrade the i5 to an i7 processor. Can someone please give me the i7 processor model number?

Can it be swapped plug & play, with no other concerns?

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Thanks. I already scanned that process. It's the easy part.

That didn't address my original question.

Can someone please give me the i7 processor model number?

Can it be swapped plug & play, with no other concerns?

Processor Name: Intel Core i7 6700K

Processor Speed: 4 GHz

Number of Processors: 1

Total Number of Cores: 4

L2 Cache (per Core): 256 KB

L3 Cache: 8 MB

This is the processor that i have already use.

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It’s still working the best. No problems at all. I use it daily.

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thx a bunch! I was weary about the tdp rating being nearly 30 watts higher

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Hi!

I have just upload a video in Youtube for the imac 27" Late 2015 CPU Update.

I try both i7-7700K and the i7-6700K.

I have desassembly ans asasseble the iMac 7 times! :)

The i7-7700K will NOT WORK!!!

The i7-6700K WORKS Fine!!! Very smooth...

Operation Temps: 40-55 idle, and 85-99 (Rendering).

Very happy for updating the CPU ( I had the i5-5600 3.2Ghz)

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Thank you for your info. You saved me a lot of time.

You are welcome!

Hey i have the same problem i also buy i7 7700k and it doesn't work with my late 2015 27 iMac. and i also deassembly and assemble it 8 times as well :D

So now i need to buy 6700 or 6700 k ?

I used the i7-6700K, and it works fine! the i7-7700k will NOT work....

I also have the same imac, and I plan to migrate from core i5 to i7. Thanks for the help!

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Here's the guide for doing it: iMac Intel 27" Retina 5K Display CPU Replacement

UPDATE

The iMac "Core i7" 4.0 27-Inch Aluminum (Retina 5K, Late 2015/Skylake) features a 14-nm "Skylake" Quad Core 4.0 GHz Intel "Core i7" processor (6700K) with four independent processor "cores" on a single chip, an 8 MB shared level 3 cache, 8 GB of 1867 MHz LPDDR3 SDRAM (PC3-14900) installed in pairs (two 4 GB modules)

4.0 GHz Core i7 (I7-6700K)

http://www.anandtech.com/show/9483/intel...

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I am wondering if someone has tried upgrading this model to 7700k (kaby lake). Since the socket connection is the same. I don't see a reason why it wouldn't work (apart from EFI or some other safety checks).

Its more than the socket its also the PCH needs to support it and the systems firmware as you noted needs to handle it.

I'm not sure if given the amount of work and the risks in replacing the chip are worth it given the slight speed bump you would get.

Would this clear this question?

SnazzyLab dit it in this video.

https://www.youtube.com/watch?v=knMM9dRw...

taogde Nice video! I invited him to join us.

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Hi! Is it possible to use Intel Core i7-6700K Skylake on a late iMac 2012?

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Sorry no. The best you can push your system to is a 3.4 GHz Core i7 (I7-3770)

Thanks for the asnwer, anyhow!

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Hi! Is it possible to use Intel Core i7-6700K Skylake on a late iMac 2014 (EMC 2806)?

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Hi, No this is not possible. I had try it in the past.

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@siomitos , I curious to know how is your system holding up since your cpu upgrade? temps, fan speed etc

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Hi. The system is running smoothly all the time now. The Temp of the Cores are between 60-65 degrees in idle mode and in rendering mode are @90-99 degrees. But I have no problem at all No freezes, no problems. 4 to 5 apps at the same time with no problems. The fan is running high only when i use the Final Cut with big files. . Also with the 64GB memory, it seems that the machine became a beast! :)

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