Core i7 8700K Delidded, Compared with Core i7 7700K

Intel’s new mainstream processor platform is just hours away from being officially launched. We probably know most of the details already regarding models, core counts, clocks and caches but one thing probably didn’t know too much about, is what does Coffee Lake have going on under the IHS. Thanks to a few chaps at HKEPC we now know a little more thanks to a delidding session with the new chip. Videocardz have the full story:

Intel was not really planning to share this information with anyone yet, but thanks to guys over at HKEPC we get to see what is hidden under the IHS. The die is the same width as Kabylake 7700K, but it is noticeably longer. The 6-core Coffeelake-S CPU has a die size around 151mm2. This is not accurate because the calculations are based on the pixel area, but it it’s good enough for now.

This means that the i7-8700K has around 29mm2 more die area for the additional 2 cores. Every reviewer I spoke with says that 5 GHz should not be a problem on Coffeelake 8700K, especially with AIO cooling. If you want to go higher, delidding is highly recommended although risky. The LGA1151 delidding tools work for Coffeelake, so it’s only a matter of time before you start seeing videos showing the exact process (I think they should go live tomorrow).

You can read the full story here on as well as the original post from HKEPC here on Facebook.

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