Intel Core i7-8700K Coffee Lake CPU Benchmarks Leaked – Cinebench and CPU-Z

Have you been wondering how the Intel Core i7-8700K ‘Coffee Lake’ 6-core, 12-thread processor is going to perform when it comes out on October 5th, 2017? Thanks to a YouTuber that was at DreamHack Montreal 2017 (September 8-10, 2017) who found an HP Omen Desktop PC on the Canada Computers booth that was running an Intel Core i7-8700K processor we now know!

Intel Core i7-8700K Clock Speed

The HP Omen was using an Intel Core i7-8700K CPU (shown at 3.70GHz default clock speeds and boosting up to 4.55GHz in the video) with 12 MB of L3 cache, 1.5MB of L2 cache and 384KB of L1 cache. The system had 32GB of DDR4 memory running at unknown speeds and an NVIDIA GeForce GTX 1080 Ti graphics card. The motherboard was an HP 8437 that was running an AMI BIOS version B.05 from 07/27/2017, which is actually really old for an unreleased processor.

Intel Core i7-8700K Cinebench R15 Score

The Intel Core i7-8700K with 6-cores, 12-threads scored 196 cb in the single-core test and 1230 cb in the multi-core test on Cinebench R15. How do those numbers stack up?

If you put the leaked numbers in our benchmark charts it puts the 8700K just behind the AMD Ryzen 5 1600X processors score of 1243 in the multi-threaded CPU test. Seeing the flagship mainstream 6-core, 12-thread desktop part from Intel losing to the 6-core, 12-thread AMD part in the multi-threaded test was something we were expecting to see since the IPC is higher on Intel. That said, the UEFI on the board was super old and lord only knows what the 32GB of DDR4 memory was clocked at and what the timings were. The Intel Core i7-7700K scored 996 cb on this test, so this is around a 23.5% increase out 7700K results that done with a DDR4 memory kit running at 3000MHz.

On CPU-Z Bench (Ver. 1.74.0 x64) the Core i7- 8700K scored around 13,700 in the CPU multi-threaded test and 2250 in the single threaded benchmark.

If you put those results in with some of our recent CPU-Z Bench results it shows that the 8700K is faster than the AMD Ryzen 5 1600X on both the single-threaded and mutl-threaded tests. It is also faster than the Intel Core i7-7700K overclocked up to 5.1GHz on the mult-threaded test at stock speeds thanks to the two additional physical cores!

 Single Thread
 Multi Thread
Intel Core i7-8700K 2,246 13,700
 Intel Core i7-6900K 1,800 15,400
 AMD Ryzen 5 1600X
1,888 12,544
 Intel Core i7-7700K @ 5.1GHz 2,550 11,150
 Intel Core i7-7700K Stock 2,260 9,900
 Intel Core i7-6700K
2,100 9,275
 Intel Core i5-6600K
1,981 7,717
 AMD Athlon X4 880K  1,204 4,470

The AMD Ryzen 5 1600X ($239.99 shipped) 6-core, 12-thread processor looks like it may be trading blows with the Intel Core i7-8700K in some benchmarks. The Intel Core i7-8700K numbers that we are seeing here are likely low due to the old UEFI build, but they have been published now. It seems unusual for a system like this to be at a trade show booth and for folks to walk up and run benchmarks on them, so we are sure that someone is going to be in for a good berating today.

You can see the whole video below!

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  • user9697

    If 1600x outperforms 8700k in multithread perf, despite turbo being 4.0 and 8700k all core turbo being 4.3, then AMD actually has better IPC than intel. There is no other plausible explanation. Single core bench is just because of 4,7 turbo vs 4.1 xfr of 1600x.