IntelBX80684I78700K
Intel

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

  

4 Cores, 8 Threads @2.50 GHz, 45 W.
Release date ≈ Q1 2020.

Real World Speed
Performance profile from 466,590 user samples
465,919 User Benchmarks
Best Bench: 104% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 84% Base clock 3.7 GHz, turbo 1.45 GHz (avg)
Poor: 84% Great: 104%
SPEED RANK: 22nd / 1255
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 96%
Nuclear submarine
Workstation
Workstation 85%
Aircraft carrier
671 User Benchmarks
Best Bench: 91% Base clock 2.5 GHz, turbo 4.2 GHz (avg)
Worst Bench: 62% Base clock 2.5 GHz, turbo 1.6 GHz (avg)
Poor: 62% Great: 91%
SPEED RANK: 125th / 1255
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
Effective Speed
Effective CPU Speed
94.4 % Faster effective speed.
+17%
80.4 %
Memory
Avg. Memory Latency
93.6 Pts Slightly lower memory latency.
+7%
87.1 Pts
1-Core
Avg. Single Core Mixed Speed
136 Pts Faster single-core speed.
+13%
120 Pts
2-Core
Avg. Dual Core Mixed Speed
266 Pts Faster dual-core speed.
+17%
228 Pts
4-Core
Avg. Quad Core Mixed Speed
512 Pts Faster quad-core speed.
+28%
399 Pts
8-Core
Avg. Octa Core Mixed Speed
831 Pts Much faster octa-core speed.
+40%
595 Pts
Memory
OC Memory Latency
97.8 Pts +4% 94.3 Pts
1-Core
OC Single Core Mixed Speed
154 Pts Faster OC single-core speed.
+14%
135 Pts
2-Core
OC Dual Core Mixed Speed
303 Pts Faster OC dual-core speed.
+16%
262 Pts
4-Core
OC Quad Core Mixed Speed
597 Pts Faster OC quad-core speed.
+22%
490 Pts
8-Core
OC Octa Core Mixed Speed
963 Pts Much faster OC octa-core speed.
+36%
706 Pts
Market Share
Based on 30,519,955 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.3 % Insanely higher market share.
+1,200%
0.1 %
User Rating
UBM User Rating
173 % Hugely more popular.
+246%
50 %
Age
Newest
33 Months 5+ Months Hugely more recent.
+85%
64-Core
OC Multi Core Mixed Speed
1195 Pts Much faster OC 64-core speed.
+70%
705 Pts
64-Core
Avg. Multi Core Mixed Speed
1034 Pts Much faster 64-core speed.
+73%
596 Pts
Launch Date
Launch Date
Q4'17 Q2'20
Cache
Cache
12 MB 8 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 4.50 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 8 GT/s
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Types
Memory Types
DDR4-2666 DDR4-2933
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® UHD Graphics
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.05 GHz
Package Size
Package Size
37.5mm x 37.5mm 42mm x 28mm
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 3
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]

MORE DETAILS

Processor Rankings (Price vs Performance) July 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.
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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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How it works

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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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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 Frequently Asked Questions

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The Best.
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HDDRAMUSB
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