IntelBX80684I78700K
IntelBX80684I78086K

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

Release date ≈ Q2 2018.

Real World Speed
Performance profile from 146,520 user samples
141,174 User Benchmarks
Best Bench: 125% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 90% Base clock 3.7 GHz, turbo 1.65 GHz (avg)
Poor: 90% Great: 125%
SPEED RANK: 9th / 1128
Gaming
Gaming 108%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 96%
Nuclear submarine
5,346 User Benchmarks
Best Bench: 127% Base clock 4 GHz, turbo 5.4 GHz (avg)
Worst Bench: 93% Base clock 4 GHz, turbo 2.6 GHz (avg)
Poor: 93% Great: 127%
SPEED RANK: 8th / 1128
Gaming
Gaming 109%
UFO
Desktop
Desktop 107%
UFO
Workstation
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed
108 % 109 % +1%
SC Mixed
Avg. Single Core Mixed Speed
138 Pts 140 Pts +1%
QC Mixed
Avg. Quad Core Mixed Speed
525 Pts 531 Pts +1%
MC Mixed
Avg. Multi Core Mixed Speed
1085 Pts 1095 Pts +1%
SC Mixed
OC Single Core Mixed Speed
155 Pts 160 Pts +3%
QC Mixed
OC Quad Core Mixed Speed
616 Pts 629 Pts +2%
MC Mixed
OC Multi Core Mixed Speed
1248 Pts 1258 Pts +1%
Market Share
Based on 11,473,226 CPUs tested.
Market Share
Market Share (trailing 30 days)
4 % Hugely higher market share.
+655%
0.53 %
Value
Value For Money
98.4 % +4% 94.6 %
User Rating
UBM User Rating
154 % Hugely more popular.
+161%
59 %
Price
Price (score)
$376 Slightly cheaper.
+13%
$431
Age
Newest
12 Months 4+ Months Much more recent.
+67%
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 612 Pts +2%
QC Float
Quad Core Floating Point Speed
638 Pts 649 Pts +2%
MC Int
Multi Core Integer Speed
1150 Pts 1162 Pts +1%
MC Float
Multi Core Floating Point Speed
1323 Pts 1354 Pts +2%
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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) October 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]

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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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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.

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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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CPUGPUSSD
Intel Core i7-8700K $376Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $115
Intel Core i7-7700K $360AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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