Today's hottest deals
IntelBX80684I78700K
IntelBX80684I59500

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

  

6 Cores, 6 Threads @3.00 GHz, 65 W.
Release date ≈ Q2 2019.

Real World Speed
Performance profile from 755,346 user samples
746,287 User Benchmarks
Best Bench: 100% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 76% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 76% Great: 100%
SPEED RANK: 167th / 1468
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 80%
Battleship
9,059 User Benchmarks
Best Bench: 94% Base clock 3 GHz, turbo 4.15 GHz (avg)
Worst Bench: 69% Base clock 3 GHz, turbo 4.1 GHz (avg)
Poor: 69% Great: 94%
SPEED RANK: 183rd / 1468
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 72%
Battleship
Effective Speed
Effective CPU Speed
88.4 % +2% 87 %
Memory
Avg. Memory Latency
90.1 Pts Slightly lower memory latency.
+7%
84.1 Pts
1-Core
Avg. Single Core Speed
128 Pts +1% 127 Pts
2-Core
Avg. Dual Core Speed
249 Pts 251 Pts +1%
4-Core
Avg. Quad Core Speed
466 Pts 490 Pts Slightly faster quad-core speed.
+5%
8-Core
Avg. Octa Core Speed
770 Pts Faster octa-core speed.
+16%
664 Pts
Memory
OC Memory Latency
96.5 Pts +2% 94.5 Pts
1-Core
OC Single Core Speed
148 Pts Slightly faster OC single-core speed.
+9%
136 Pts
2-Core
OC Dual Core Speed
292 Pts Slightly faster OC dual-core speed.
+9%
268 Pts
4-Core
OC Quad Core Speed
558 Pts Slightly faster OC quad-core speed.
+7%
522 Pts
8-Core
OC Octa Core Speed
892 Pts Faster OC octa-core speed.
+16%
768 Pts
Market Share
Based on 68,909,476 CPUs tested
Market Share
Market Share (trailing 30 days)
1.39 % Insanely higher market share.
+1,444%
0.09 %
User Rating
UBM User Rating
82 % Much more popular.
+49%
55 %
Age
Newest
85 Months 64+ Months More recent.
+25%
64-Core
OC Multi Core Speed
1147 Pts Much faster OC 64-core speed.
+50%
765 Pts
64-Core
Avg. Multi Core Speed
971 Pts Much faster 64-core speed.
+43%
678 Pts
Launch Date
Launch Date
Q4'17 Q2'19
Cache
Cache
12 MB 9 MB SmartCache
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 4.40 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015C (65W)
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.10 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »

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

Way better than the older i3s that were in the old computers my school had.  [Feb '20 Drakorvich]

MORE DETAILS

Processor Rankings (Price vs Performance) November 2024 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]

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 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 value for money 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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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

 Frequently Asked Questions

 Best User Rated

Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback