Real World Speed
Performance profile from 22,077 user samples
22,077 User Benchmarks
Best Bench: 105% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 72% Base clock 3.3 GHz
Poor: 72% Great: 105%
SPEED RANK: 21st / 966
Gaming 86%
Aircraft carrier
Desktop 83%
Aircraft carrier
Workstation 76%
Effective Speed
Effective CPU Speed
86.3 % -0% 86.4 % +0%
SC Mixed
Avg. Single Core Mixed Speed
107 Pts -10% 118 Pts Slightly faster single-core speed.
QC Mixed
Avg. Quad Core Mixed Speed
423 Pts +1% 420 Pts -1%
MC Mixed
Avg. Multi Core Mixed Speed
870 Pts Faster multi-core speed.
732 Pts -19%
SC Mixed
OC Single Core Mixed Speed
131 Pts -1% 132 Pts +1%
QC Mixed
OC Quad Core Mixed Speed
515 Pts +4% 494 Pts -4%
MC Mixed
OC Multi Core Mixed Speed
1053 Pts Faster OC multi-core speed.
827 Pts -27%
Market Share
Based on 4,408,643 CPUs tested.
User Rating
UBM User Rating
74 % -53% 113 % Much more popular.
Market Share
Market Share (trailing 30 days)
0.52 % -260% 1.87 % Hugely higher market share.
Price (score)
$374 -45% 259 USD Much cheaper.
Value For Money
78.6 % -18% 92.4 % Better value.
Thermal Design Power (TDP)
140 Watts -72% 81.2 Watts Much more energy efficient.
CPU Processing Cores
6 cores Higher core count.
4.89 cores -23%
CPU Processing Threads
12 threads Much higher thread count.
8.89 threads -35%
Manufacturing process
22 nm -48% 14.9 nm Much newer manufacturing.
Base Clock
Base Clock Speed
3.3 GHz -10% 3.64 GHz Slightly faster base frequency.
Turbo Clock
Turbo Clock Speed
3.6 GHz -11% 4 GHz Slightly faster turbo frequency.
SC Int
Single Core Integer Speed
133 Pts +3% 129 Pts -3%
SC Float
Single Core Floating Point Speed
134 Pts -2% 137 Pts +2%
QC Int
Quad Core Integer Speed
523 Pts Slightly faster quad-core int speed.
481 Pts -9%
QC Float
Quad Core Floating Point Speed
531 Pts +4% 512 Pts -4%
MC Int
Multi Core Integer Speed
998 Pts Faster multi-core int speed.
797 Pts -25%
MC Float
Multi Core Floating Point Speed
1065 Pts Faster multi-core fp speed.
844 Pts -26%
35 Months -181% 12.4 Months Hugely more recent.
CPU Architecture
Haswell-E (2014)   —
Motherboard Socket
LGA2011-V3   —
Integrated Graphics
None   —

The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 CPUPro]


Processor Rankings (Price vs Performance) July 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 $295Nvidia GTX 1070 $380Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $268AMD RX 480 $410Samsung 850 Pro 256GB $120
Intel Core i5-7600K $235Nvidia GTX 1060-6GB $269Samsung 850 Evo 500GB $165
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $137SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $44HyperX Fury DDR4 2133 C14 2x8GB $128SanDisk Ultra Fit 32GB $13
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