Real World Speed
Performance profile from 42,814 user samples
42,814 User Benchmarks
Best Bench: 126% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 94% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 94% Great: 126%
SPEED RANK: 6th / 1052
Gaming 110%
Desktop 107%
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed
110 % Faster effective speed.
93.7 %
SC Mixed
Avg. Single Core Mixed Speed
140 Pts Slightly faster single-core speed.
123 Pts
QC Mixed
Avg. Quad Core Mixed Speed
536 Pts Faster quad-core speed.
462 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1100 Pts Much faster multi-core speed.
814 Pts
SC Mixed
OC Single Core Mixed Speed
157 Pts Slightly faster OC single-core speed.
137 Pts
QC Mixed
OC Quad Core Mixed Speed
622 Pts Faster OC quad-core speed.
531 Pts
MC Mixed
OC Multi Core Mixed Speed
1261 Pts Much faster OC multi-core speed.
924 Pts
Market Share
Based on 7,873,873 CPUs tested.
User Rating
UBM User Rating
142 % More popular.
116 %
Market Share
Market Share (trailing 30 days)
3.32 % Hugely higher market share.
1.56 %
Price (score)
$330 245 USD Much cheaper.
Value For Money
105 % +4% 101 %
Thermal Design Power (TDP)
95 Watts 83.3 Watts Slightly more energy efficient.
CPU Processing Cores
6 cores Slightly higher core count.
5.56 cores
CPU Processing Threads
12 threads Higher thread count.
9.33 threads
Manufacturing process
14 nm Slightly newer manufacturing.
14.9 nm
Base Clock
Base Clock Speed
3.7 GHz +4% 3.54 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Slightly faster turbo frequency.
4.16 GHz
SC Int
Single Core Integer Speed
154 Pts Faster single-core int speed.
133 Pts
SC Float
Single Core Floating Point Speed
160 Pts Slightly faster single-core fp speed.
141 Pts
QC Int
Quad Core Integer Speed
612 Pts Faster quad-core int speed.
516 Pts
QC Float
Quad Core Floating Point Speed
636 Pts Faster quad-core fp speed.
548 Pts
MC Int
Multi Core Integer Speed
1162 Pts Much faster multi-core int speed.
884 Pts
MC Float
Multi Core Floating Point Speed
1333 Pts Much faster multi-core fp speed.
953 Pts
5 Months Hugely more recent.
13.6 Months
CPU Architecture
Coffee Lake (2017)   —
Motherboard Socket
FCLGA1151   —
Integrated Graphics
UHD 630   —

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]


Processor Rankings (Price vs Performance) March 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]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $139
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $140
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $198SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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