4 Cores, 4 Threads
@3.5GHz Skylake (2015)

4 Cores, 8 Threads
@3.2GHz Zen (2017)

Real World Speed
Performance profile from 115,267 user samples
106,203 User Benchmarks
Best Bench: 106% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 69% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 69% Great: 106%
SPEED RANK: 34th / 1052
Gaming 88%
Aircraft carrier
Desktop 86%
Aircraft carrier
Workstation 54%
9,064 User Benchmarks
Best Bench: 83% Base clock 4 GHz, turbo 3.95 GHz (avg)
Worst Bench: 57% Base clock 3.2 GHz, turbo 0.55 GHz (avg)
Poor: 57% Great: 83%
SPEED RANK: 126th / 1052
Gaming 69%
Battle cruiser
Desktop 69%
Battle cruiser
Workstation 52%
Effective Speed
Effective CPU Speed
87.9 % Faster effective speed.
68.7 %
SC Mixed
Avg. Single Core Mixed Speed
121 Pts Faster single-core speed.
95.1 Pts
QC Mixed
Avg. Quad Core Mixed Speed
455 Pts Much faster quad-core speed.
337 Pts
MC Mixed
Avg. Multi Core Mixed Speed
469 Pts 532 Pts Slightly faster multi-core speed.
SC Mixed
OC Single Core Mixed Speed
145 Pts Faster OC single-core speed.
112 Pts
QC Mixed
OC Quad Core Mixed Speed
557 Pts Much faster OC quad-core speed.
416 Pts
MC Mixed
OC Multi Core Mixed Speed
565 Pts 638 Pts Slightly faster OC multi-core speed.
Market Share
Based on 7,884,273 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.16 % Hugely higher market share.
0.37 %
Value For Money
97 % Slightly better value.
88.2 %
User Rating
UBM User Rating
89 % Slightly more popular.
82 %
Price (score)
$224 $150 Much cheaper.
31 Months 11 Months Much more recent.
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
CPU Processing Cores
4 cores 4 cores
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.5 GHz Slightly faster base frequency.
3.2 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz Slightly faster turbo frequency.
3.4 GHz
SC Int
Single Core Integer Speed
140 Pts Faster single-core int speed.
108 Pts
SC Float
Single Core Floating Point Speed
149 Pts Faster single-core fp speed.
116 Pts
QC Int
Quad Core Integer Speed
545 Pts Much faster quad-core int speed.
404 Pts
QC Float
Quad Core Floating Point Speed
582 Pts Much faster quad-core fp speed.
429 Pts
MC Int
Multi Core Integer Speed
548 Pts 619 Pts Slightly faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
583 Pts 642 Pts Slightly faster multi-core fp speed.
CPU Architecture
Skylake (2015) Zen (2017)
Motherboard Socket
Integrated Graphics
HD 530 None

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]


The Ryzen 5 1400 is the entry-level chip from AMD's latest Ryzen 5 series which is aimed at the mainstream market. The 1400 is a budget quad core, 8 threaded CPU with base/boost clocks of 3.2/3.4 GHz. Like most the other non-X Ryzen CPUs the 1400 comes with a decent cooler included in the box (Wraith Stealth in this case). Modestly priced at $169 the 1400 is in direct competition with Intel's recent Kaby Lake dual core, four threaded i3-7350k which runs at a base clock of 4.2GHz. The 1400's 8 threads allow a near 40% lead in multi-core processing, but for single-core tasks the 7350K is 45% faster. The Ryzen 5 1500X commands a $20 premium and offers a 25% increase in effective speed over the 1400. Although the 1400 only has a base clock of 3.2 GHz it should more or less match the 1500X when overclocked. Provided it is overclocked, the 1400 joins the other non-X Ryzen models in offering the best bang for your buck. Users not keen on overclocking would probably do better to consider the 1500X at this price point. [Apr '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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Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $131
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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