IntelBX80684I78700K
IntelBX80684I78086K

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

6 Cores, 12 Threads @4.00 GHz, Coffee Lake.
Release date ≈ Q2 2018.

Real World Speed
Performance profile from 262,298 user samples
249,526 User Benchmarks
Best Bench: 124% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 94% Base clock 3.7 GHz, turbo 1.15 GHz (avg)
Poor: 94% Great: 124%
SPEED RANK: 21st / 1146
Gaming
Gaming 109%
UFO
Desktop
Desktop 106%
UFO
Workstation
Workstation 96%
Nuclear submarine
12,772 User Benchmarks
Best Bench: 126% Base clock 4 GHz, turbo 5.4 GHz (avg)
Worst Bench: 94% Base clock 4 GHz, turbo 1.9 GHz (avg)
Poor: 94% Great: 126%
SPEED RANK: 18th / 1146
Gaming
Gaming 110%
UFO
Desktop
Desktop 108%
UFO
Workstation
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed
109 % 110 % +2%
SC Mixed
Avg. Single Core Mixed Speed
138 Pts 141 Pts +2%
QC Mixed
Avg. Quad Core Mixed Speed
527 Pts 534 Pts +1%
MC Mixed
Avg. Multi Core Mixed Speed
1083 Pts 1101 Pts +2%
SC Mixed
OC Single Core Mixed Speed
155 Pts 160 Pts +3%
QC Mixed
OC Quad Core Mixed Speed
616 Pts 623 Pts +1%
MC Mixed
OC Multi Core Mixed Speed
1235 Pts 1266 Pts +3%
Market Share
Based on 14,748,670 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.93 % Insanely higher market share.
+1,365%
0.2 %
Value
Value For Money
100 % Slightly better value.
+7%
93.7 %
User Rating
UBM User Rating
160 % Hugely more popular.
+154%
63 %
Price
Price (score)
$360 Cheaper.
+20%
$450
Age
Newest
16 Months 8+ Months Much more recent.
+50%
SC Int
Single Core Integer Speed
151 Pts 156 Pts +3%
SC Float
Single Core Floating Point Speed
160 Pts 165 Pts +3%
QC Int
Quad Core Integer Speed
598 Pts 609 Pts +2%
QC Float
Quad Core Floating Point Speed
634 Pts 644 Pts +2%
MC Int
Multi Core Integer Speed
1121 Pts 1156 Pts +3%
MC Float
Multi Core Floating Point Speed
1322 Pts 1357 Pts +3%
Launch Date
Launch Date
Q4'17 Q2'18
Cache
Cache
12 MB 12 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

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Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a TDP of 95W. Essentially, the 8086K is Intel’s current Coffee Lake flagship, the i7-8700K, with a single-core turbo frequency factory overclocked by 300 MHz. Thermals permitting, out of the box, the i7-8086K achieves a single core boost speed of 5.0 GHz – which is a new record for Intel. That said, you would be unlucky if you were unable to achieve a 5.0 GHz single core OC with an 8700K. For everything other than single core, the turbo clock speeds on the 8086K exactly match the 8700K which puts the 8086K firmly into gimmick territory. Directly comparing the 8086K and 8700K shows that for a $100 (24%) price premium you get around a 5% performance improvement which drops to around 2% when both chips are overclocked. If the price gap between the 8086K and the 8700K were to fall to less than 20 USD it may be worth considering the 8086K. [Jun '18 CPUPro]

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Processor Rankings (Price vs Performance) February 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $336Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $149Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $90
Intel Core i5-8600K $259Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $750SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $126SanDisk Ultra Fit 32GB $12
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