Real World Speed
Performance profile from 56,082 user samples
56,082 User Benchmarks
Best Bench: 109% Base clock 3.5 GHz, turbo 4.9 GHz (avg)
Worst Bench: 69% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 69% Great: 109%
SPEED RANK: 8th / 952
Gaming 91%
Nuclear submarine
Desktop 88%
Aircraft carrier
Workstation 55%
Effective Speed
Effective CPU Speed
90.8 % +3% 88.1 % -3%
SC Mixed
Avg. Single Core Mixed Speed
124 Pts +4% 119 Pts -4%
QC Mixed
Avg. Quad Core Mixed Speed
472 Pts Slightly faster quad-core speed.
426 Pts -11%
MC Mixed
Avg. Multi Core Mixed Speed
485 Pts -60% 777 Pts Much faster multi-core speed.
SC Mixed
OC Single Core Mixed Speed
146 Pts Slightly faster OC single-core speed.
133 Pts -10%
QC Mixed
OC Quad Core Mixed Speed
573 Pts Slightly faster OC quad-core speed.
498 Pts -15%
MC Mixed
OC Multi Core Mixed Speed
577 Pts -52% 877 Pts Much faster OC multi-core speed.
Market Share
Based on 3,220,593 CPUs tested.
User Rating
UBM User Rating
96 % -6% 102 % Slightly more popular.
Market Share
Market Share (trailing 30 days)
2.3 % Slightly higher market share.
2.12 % -8%
Price (score)
$220 Much cheaper.
294 USD -34%
Value For Money
101 % Slightly better value.
90.8 % -11%
Thermal Design Power (TDP)
91 Watts -8% 84.6 Watts Slightly more energy efficient.
CPU Processing Cores
4 cores -28% 5.11 cores Higher core count.
CPU Processing Threads
4 threads -133% 9.33 threads Hugely higher thread count.
Manufacturing process
14 nm Slightly newer manufacturing.
14.9 nm -6%
Base Clock
Base Clock Speed
3.5 GHz -5% 3.67 GHz +5%
Turbo Clock
Turbo Clock Speed
3.9 GHz -3% 4.02 GHz +3%
SC Int
Single Core Integer Speed
141 Pts Slightly faster single-core int speed.
130 Pts -8%
SC Float
Single Core Floating Point Speed
151 Pts Slightly faster single-core fp speed.
137 Pts -10%
QC Int
Quad Core Integer Speed
555 Pts Slightly faster quad-core int speed.
484 Pts -15%
QC Float
Quad Core Floating Point Speed
594 Pts Faster quad-core fp speed.
515 Pts -15%
MC Int
Multi Core Integer Speed
556 Pts -52% 844 Pts Much faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
596 Pts -49% 891 Pts Much faster multi-core fp speed.
19 Months -122% 8.56 Months Hugely more recent.
CPU Architecture
Skylake (2015)   —
Motherboard Socket
FCLGA1151   —
Integrated Graphics
HD 530   —

The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]


Processor Rankings (Price vs Performance) March 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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 i7-7700K $310AMD RX 480 $190Samsung 850 Evo 250GB $94
AMD Ryzen 7 1700 $330Nvidia GTX 1070 $370Samsung 850 Pro 256GB $130
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $219Samsung 850 Evo 500GB $160
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $430SanDisk Extreme 32GB $26
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $9
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