The 8th Generation Intel Core processors, codenamed Coffee Lake, are the first Intel processor family to garner so much interest in recent history. Thanks to the Ryzen Effect, Intel is finally increasing the number of processor cores across the board. FINALLY. In this review, we are going to take a close look at the new Intel Core i7-8700K processor that boasts 6 cores capable of handling 12 simultaneous threads.
The 8th Generation Intel Core Processors
The Intel Core i7-8700K headlines the new 8th Generation Intel Core processor family. Here is a table comparing their key specifications :
|Specifications||Core i7-8700K||Core i7-8700||Core i5-8600K||Core i5-8400||Core i3-8350K||Core i3-8300||Core i3-8100|
|Base Clock||3.7 GHz||3.2 GHz||3.5 GHz||2.8 GHz||4.0 GHz||4.0 GHz||3.6 GHz|
|Boost Clock||4.7 GHz||4.6 GHz||4.4 GHz||3.9 GHz||None||None||None|
|L1 Cache||384 KB||384 KB||384 KB||384 KB||256 KB||256 KB||256 KB|
|L2 Cache||1.5 MB||1.5 MB||1.5 MB||1.5 MB||1 MB||1 MB||1 MB|
|L3 Cache||12 MB||12 MB||9 MB||9 MB||8 MB||6 MB||6 MB|
|TDP||95 W||65 W||95 W||65 W||91 W||65 W||65 W|
The Intel Core i7-8700K Hexa-Core CPU
The Intel Coffee Lake (8th Gen) processors are built on the same 14 nm process technology as the Intel Skylake and Kaby Lake processors, albeit refined. In addition to the two extra processor cores, it packs a 50% larger L3 cache and support for faster DDR4-2666 memory.
Even with the two additional cores and a larger L3 cache, the Intel Core i7-8700K looks like any other LGA 1151 processor that have come out of Intel’s factories in years past. However, it cannot be used in older Intel 100-series or 200-series motherboards. Even though it uses the same LGA 1151 socket, its pin configuration has changed. It must be installed in an Intel 300-series motherboard.
Benchmarking The Intel Core i7-8700K
In this review, we will take a look at the work and gaming performance of the Intel Core i7-8700K processor. We will compare it to the Ryzen 7 1800X (Price Check), the Intel Core i7-6700K, the Ryzen 5 1500X (Price Check) and the Ryzen 3 1300X (Price Check) processors. Here is a table comparing their key specifications.
|AMD Ryzen 7 1800X||Intel Core i7-8700K||Intel Core i7-6700K||AMD Ryzen 5 1500X||AMD Ryzen 3 1300X|
|Cores / Threads||8 / 16||6 / 12||4 / 8||4 / 8||4 / 4|
|Base Clock||3.6 GHz||3.7 GHz||4.0 GHz||3.5 GHz||3.5 GHz|
|Boost Clock||4.0 GHz||4.7 GHz||4.2 GHz||3.7 GHz||3.7 GHz|
|L2 Cache||4 MB||1.5 MB||1 MB||2 MB||2 MB|
|L3 Cache||16 MB||12 MB||8 MB||16 MB||8 MB|
|Current Price||US$ 499||US$ 339||US$ 298||US$ 189||US$ 129|
Here are the specifications of the testbeds we used :
|Intel Testbed||AMD Testbed|
|Processors||Intel Core i7-8700K
Intel Core i7-6700K
|AMD Ryzen 7 1800X
AMD Ryzen 5 1500X
AMD Ryzen 3 1300X
|Motherboard||ASUS ROG Strix Z370-F-Gaming
ASRock Z170 Extreme4
|GIGABYTE AORUS GA-AX370 Gaming-5
ASRock AB350 Gaming K4
|Memory Speed||Corsair Vengeance LPX
DDR4-2666 (4 GB x 2)
|Corsair Vengeance LPX
DDR4-2666 (4 GB x 2)
|Graphics Card||AMD Radeon RX 480||AMD Radeon RX 480|
|Storage||Western Digital Black²||Western Digital Black²|
|Operating System||Microsoft Windows 10 (64-bit)||Microsoft Windows 10 (64-bit)|
The Intel Core i7-8700K has 2 extra cores and handles 50% more threads than the Intel Core i7-6700K, but has a slightly lower base clock speed. However its boost clock goes all the way to 4.7 GHz, if a single core is used. Let’s see how it performs against the field!