Intel
IntelBX80684I78700K
  

2 Cores, 4 Threads @2 GHz, Haswell.
Release date ≈ Q2 2014.

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

Real World Speed
Performance profile from 571,558 user samples
47,796 User Benchmarks
Best Bench: 63% Base clock 2.6 GHz, turbo 2.75 GHz (avg)
Worst Bench: 43% Base clock 2.6 GHz, turbo 1.15 GHz (avg)
Poor: 43% Great: 63%
SPEED RANK: 574th / 1276
Gaming
Gaming 56%
Gunboat
Desktop
Desktop 62%
Destroyer
Workstation
Workstation 39%
Jet ski
523,762 User Benchmarks
Best Bench: 104% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 81% Base clock 0.8 GHz, turbo 0.8 GHz (avg)
Poor: 81% Great: 104%
SPEED RANK: 28th / 1276
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 84%
Aircraft carrier
Effective Speed
Effective CPU Speed
55.6 % 92.9 % Much faster effective speed.
+67%
Memory
Avg. Memory Latency
79.5 Pts 92.8 Pts Lower memory latency.
+17%
1-Core
Avg. Single Core Mixed Speed
75.7 Pts 135 Pts Much faster single-core speed.
+78%
2-Core
Avg. Dual Core Mixed Speed
126 Pts 264 Pts Hugely faster dual-core speed.
+110%
4-Core
Avg. Quad Core Mixed Speed
185 Pts 501 Pts Hugely faster quad-core speed.
+171%
8-Core
Avg. Octa Core Mixed Speed
190 Pts 820 Pts Hugely faster octa-core speed.
+332%
Memory
OC Memory Latency
90.7 Pts 97.4 Pts Slightly lower OC memory latency.
+7%
1-Core
OC Single Core Mixed Speed
90.6 Pts 154 Pts Much faster OC single-core speed.
+70%
2-Core
OC Dual Core Mixed Speed
153 Pts 304 Pts Hugely faster OC dual-core speed.
+99%
4-Core
OC Quad Core Mixed Speed
217 Pts 594 Pts Hugely faster OC quad-core speed.
+174%
8-Core
OC Octa Core Mixed Speed
218 Pts 961 Pts Hugely faster OC octa-core speed.
+341%
Market Share
Based on 36,068,918 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.14 % 1.63 % Insanely higher market share.
+1,064%
User Rating
UBM User Rating
56 % 158 % Hugely more popular.
+182%
Age
Newest
77+ Months 37 Months Much more recent.
+52%
64-Core
OC Multi Core Mixed Speed
218 Pts 1198 Pts Hugely faster OC 64-core speed.
+450%
64-Core
Avg. Multi Core Mixed Speed
189 Pts 1031 Pts Hugely faster 64-core speed.
+446%
Launch Date
Launch Date
Q2'14 Q4'17
Cache
Cache
4 MB SmartCache 12 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$393.00 N/A
Max Turbo Frequency
Max Turbo Frequency
3.1 GHz 4.70 GHz
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
16 GB 64 GB
Memory Types
Memory Types
DDR3L 1333/1600, LPDDR3 1333/1600 DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4400 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
200 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.1 GHz 1.20 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Package Size
Package Size
40mm x 24mm x 1.5mm 37.5mm x 37.5mm
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
2.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
4x1, 2x4 Up to 1x16 or 2x8 or 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
12 16

More specs » More specs »
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Still holds up quite a bit today, but don't expect as much fast performance. [Jul '20 flinchstrut]

MORE DETAILS

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

Processor Rankings (Price vs Performance) November 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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.
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.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i5-9600K $190Nvidia RTX 3070 $500Crucial MX500 250GB $34
Intel Core i5-9400F $150Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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