Intel
IntelBX80684I78700K
  

4 Cores, 8 Threads @1.00 GHz, 15 W.
Release date ≈ Q3 2019.

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

Real World Speed
Performance profile from 429,090 user samples
8,135 User Benchmarks
Best Bench: 83% Base clock 1.2 GHz, turbo 3.25 GHz (avg)
Worst Bench: 49% Base clock 1.2 GHz, turbo 2.05 GHz (avg)
Poor: 49% Great: 83%
SPEED RANK: 336th / 1258
Gaming
Gaming 68%
Battle cruiser
Desktop
Desktop 75%
Battleship
Workstation
Workstation 54%
Yacht
420,955 User Benchmarks
Best Bench: 104% Base clock 3.7 GHz, turbo 5.35 GHz (avg)
Worst Bench: 81% Base clock 3.7 GHz, turbo 4.3 GHz (avg)
Poor: 81% Great: 104%
SPEED RANK: 23rd / 1258
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 85%
Aircraft carrier
Effective Speed
Effective CPU Speed
67.6 % 93.6 % Much faster effective speed.
+39%
Memory
Avg. Memory Latency
70.7 Pts 92.9 Pts Much lower memory latency.
+31%
1-Core
Avg. Single Core Mixed Speed
121 Pts 135 Pts Faster single-core speed.
+12%
2-Core
Avg. Dual Core Mixed Speed
224 Pts 264 Pts Faster dual-core speed.
+18%
4-Core
Avg. Quad Core Mixed Speed
356 Pts 508 Pts Much faster quad-core speed.
+43%
8-Core
Avg. Octa Core Mixed Speed
462 Pts 818 Pts Much faster octa-core speed.
+77%
Memory
OC Memory Latency
82.6 Pts 97.4 Pts Lower OC memory latency.
+18%
1-Core
OC Single Core Mixed Speed
138 Pts 153 Pts Faster OC single-core speed.
+11%
2-Core
OC Dual Core Mixed Speed
272 Pts 303 Pts Faster OC dual-core speed.
+11%
4-Core
OC Quad Core Mixed Speed
477 Pts 601 Pts Faster OC quad-core speed.
+26%
8-Core
OC Octa Core Mixed Speed
624 Pts 954 Pts Much faster OC octa-core speed.
+53%
Market Share
Based on 31,575,104 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.29 % 1.39 % Hugely higher market share.
+379%
User Rating
UBM User Rating
63 % 175 % Hugely more popular.
+178%
Age
Newest
11+ Months Much more recent.
+68%
34 Months
64-Core
OC Multi Core Mixed Speed
622 Pts 1187 Pts Hugely faster OC 64-core speed.
+91%
64-Core
Avg. Multi Core Mixed Speed
447 Pts 1023 Pts Hugely faster 64-core speed.
+129%
Launch Date
Launch Date
Q3'19 Q4'17
Cache
Cache
6 MB Intel® Smart Cache 12 MB
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 SSE4.1/4.2, AVX2
Lithography
Lithography
10 nm 14 nm
Max Turbo Frequency
Max Turbo Frequency
3.60 GHz 4.70 GHz
Bus Speed
Bus Speed
4 GT/s 8 GT/s DMI3
Memory Types
Memory Types
DDR4-3200, LPDDR4-3733 DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
300 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.20 GHz
Package Size
Package Size
50mm x 25mm 37.5mm x 37.5mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2 2.0
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
3 3.0

More specs » More specs »
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Works well with a slight undervolt of about 70-90mV [Jun '20 Peiyuan]

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) August 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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The Best.
CPUGPUSSD
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HDDRAMUSB
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