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× Core i7-8700K | × Core i7-7800X | CPU3 | CPU4 | CPU5 | CPU6 |
| Released | 2017 | 2017 | ||||
| Category | Desktop | Desktop | ||||
| Socket | LGA1151-2 | LGA2066 | ||||
| Cores | 6 | 6 | ||||
| Threads | 12 | 12 | ||||
| Base frequency | 3700 MHz | 3500 MHz | ||||
| Auto Boost | to 4700 MHz | to 4000 MHz | ||||
| L1 Cache, Кb | 6x32 + 6x32 | 6x32 + 6x32 | ||||
| L2 Cache, Кb | 6x256 | 6x1024 | ||||
| L3 Cache, Кb | 12288 | 8448 | ||||
| Architecture (core) | Coffee Lake-S | Skylake-X | ||||
| Lithography | 14 nm | 14 nm | ||||
| Transistors, mil. | ||||||
| TDP | 95 W | 140 W | ||||
| Max. temperature | 100° C | 95° C | ||||
| Bus | 8 GT/s DMI | 8 GT/s DMI | ||||
| Integrated GPU | Intel UHD Graphics 630 350 - 1200 MHz |
no | ||||
| Memory (RAM) | DDR4-2666 (channels - 2) |
DDR4-2400 (channels - 4) | ||||
| PCIe | PCI Express 3.0 (16 lines) |
PCI Express 3.0 (28 lines) | ||||
| Integrated modules | ||||||
| Instructions, technologies | • MMX • SSE • SSE2 • SSE3 • SSSE3 • SSE4 • AES • AVX • AVX 2.0 • BMI1, BMI2 • F16C • FMA3 • EM64T • NX • VT-x • VT-d • Hyper-Threading • Turbo Boost 2.0 • TXT • TSX • MPX • SGX • Enhanced SpeedStep tech. |
• MMX • SSE • SSE2 • SSE3 • SSSE3 • SSE4 • AES • AVX • AVX 2.0 • AVX 512 • BMI1, BMI2 • F16C • FMA3 • EM64T • NX • VT-x • VT-d • Turbo Boost • Enhanced SpeedStep tech. | ||||
| Other features | • Unlocked multiplier |
• Unlocked multiplier | ||||
| more... | more... |
Overall performance rating 
iGPU performance
 PassMark
|
|
| Intel Core i7-8700K | 13673 (100 %) |
| Intel Core i7-7800X | 12872 (94 %) |
 Geekbench 4
Multi-Core
Single-Core |
|
| Intel Core i7-8700K | 43238 (100 %) |
| Intel Core i7-7800X | 31683 (73 %) |
 Cinebench R11.5
Multi-Core
Single-Core |
|
| Intel Core i7-8700K | 15.02 (100 %) |
| Intel Core i7-7800X | ~14.63 ? (97 %) |
 Cinebench R15
Multi-Core
Single-Core |
|
| Intel Core i7-8700K | 1429 (100 %) |
| Intel Core i7-7800X | 1285 (90 %) |
 X264 HD Benchmark 4.0
Pass 1
Pass 2 |
|
| Intel Core i7-7800X | ~361.33 ? (100 %) |
| Intel Core i7-8700K | 232.5 (64 %) |
 WinRAR
|
|
| Intel Core i7-7800X | ~9906 ? (100 %) |
| Intel Core i7-8700K | 7076 (71 %) |
 3DMark 06 CPU
|
|
| Intel Core i7-7800X | ~17470 ? (100 %) |
| Intel Core i7-8700K | 11650 (67 %) |
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