IntelBX80684I78700K
IntelBX80684I78086K

6 Cores, 12 Threads
@3.7GHz Coffee Lake (2017)

Real World Speed
Performance profile from 88,220 user samples
87,971 User Benchmarks
Best Bench: 126% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 93% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 93% Great: 126%
SPEED RANK: 7th / 1110
Gaming
Gaming 109%
UFO
Desktop
Desktop 106%
UFO
Workstation
Workstation 96%
Nuclear submarine
249 User Benchmarks
Best Bench: 129% Base clock 4 GHz, turbo 5.2 GHz (avg)
Worst Bench: 100% Base clock 4 GHz, turbo 4.3 GHz (avg)
Poor: 100% Great: 129%
SPEED RANK: 3rd / 1110
Gaming
Gaming 115%
UFO
Desktop
Desktop 112%
UFO
Workstation
Workstation 101%
UFO
Effective Speed
Effective CPU Speed
109 % 115 % Slightly faster effective speed.
+5%
SC Mixed
Avg. Single Core Mixed Speed
139 Pts 146 Pts Slightly faster single-core speed.
+5%
QC Mixed
Avg. Quad Core Mixed Speed
532 Pts 562 Pts Slightly faster quad-core speed.
+6%
MC Mixed
Avg. Multi Core Mixed Speed
1082 Pts 1134 Pts +5%
SC Mixed
OC Single Core Mixed Speed
157 Pts 163 Pts +4%
QC Mixed
OC Quad Core Mixed Speed
624 Pts 638 Pts +2%
MC Mixed
OC Multi Core Mixed Speed
1253 Pts 1278 Pts +2%
Market Share
Based on 9,396,464 CPUs tested.
Market Share
Market Share (trailing 30 days)
4.01 % Insanely higher market share.
+1,810%
0.21 %
Value
Value For Money
106 % Slightly better value.
+6%
100 %
User Rating
UBM User Rating
142 % Hugely more popular.
+184%
50 %
Price
Price (score)
$320 Cheaper.
+25%
$425
Age
Newest
8 Months 0 Months Hugely more recent.
+100%
SC Int
Single Core Integer Speed
154 Pts 160 Pts +4%
SC Float
Single Core Floating Point Speed
159 Pts 166 Pts +4%
QC Int
Quad Core Integer Speed
613 Pts 624 Pts +2%
QC Float
Quad Core Floating Point Speed
637 Pts 652 Pts +2%
MC Int
Multi Core Integer Speed
1156 Pts 1176 Pts +2%
MC Float
Multi Core Floating Point Speed
1327 Pts 1366 Pts +3%
ADVERTISEMENT

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]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) June 2018 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]

ADVERTISEMENT

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $104
AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $125
Intel Core i5-8600K $222AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback