Real World Speed
Performance profile from 196,099 user samples
65,228 User Benchmarks
Best Bench: 107% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 66% Base clock 3.5 GHz, turbo 0.8 GHz (avg)
Poor: 66% Great: 107%
SPEED RANK: 15th / 961
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 53%
Yacht
130,871 User Benchmarks
Best Bench: 106% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 81% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 81% Great: 106%
SPEED RANK: 9th / 961
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 68%
Battle cruiser
Effective Speed
Effective CPU Speed
88 % -5% 92.1 % +5%
SC Mixed
Avg. Single Core Mixed Speed
120 Pts -8% 129 Pts Slightly faster single-core speed.
+8%
QC Mixed
Avg. Quad Core Mixed Speed
458 Pts +1% 452 Pts -1%
MC Mixed
Avg. Multi Core Mixed Speed
468 Pts -47% 688 Pts Much faster multi-core speed.
+47%
SC Mixed
OC Single Core Mixed Speed
143 Pts -1% 144 Pts +1%
QC Mixed
OC Quad Core Mixed Speed
562 Pts +5% 536 Pts -5%
MC Mixed
OC Multi Core Mixed Speed
563 Pts -38% 777 Pts Much faster OC multi-core speed.
+38%
Market Share
Based on 4,099,147 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.71 % -78% 3.05 % Much higher market share.
+78%
Value
Value For Money
98.8 % Slightly better value.
+10%
89.5 % -10%
User Rating
UBM User Rating
98 % +4% 94 % -4%
Price
Price (score)
$214 Much cheaper.
+32%
$315 -32%
Age
Newest
22 Months 0% 22 Months 0%
TDP
Thermal Design Power (TDP)
91 Watts 0% 91 Watts 0%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
4 threads -100% 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm 0% 14 nm 0%
Base Clock
Base Clock Speed
3.5 GHz -14% 4 GHz Slightly faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
3.9 GHz -8% 4.2 GHz Slightly faster turbo frequency.
+8%
SC Int
Single Core Integer Speed
138 Pts -2% 141 Pts +2%
SC Float
Single Core Floating Point Speed
148 Pts 0% 148 Pts 0%
QC Int
Quad Core Integer Speed
544 Pts +5% 519 Pts -5%
QC Float
Quad Core Floating Point Speed
582 Pts Slightly faster quad-core fp speed.
+5%
552 Pts -5%
MC Int
Multi Core Integer Speed
546 Pts -32% 718 Pts Much faster multi-core int speed.
+32%
MC Float
Multi Core Floating Point Speed
585 Pts -39% 814 Pts Much faster multi-core fp speed.
+39%
Series
CPU Architecture
Skylake (2015) Skylake (2015)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 530
Cache
Cache
6 MB SmartCache 8 MB SmartCache
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $339.00 - $350.00
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes

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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]

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The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

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Processor Rankings (Price vs Performance) June 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 userbenchmark.com.
  • - 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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CPUGPUSSD
Intel Core i7-7700K $309Nvidia GTX 1070 $390Samsung 850 Evo 250GB $100
AMD Ryzen 7 1700 $297AMD RX 480 $608Samsung 850 Pro 256GB $125
Intel Core i5-7600K $233Nvidia GTX 1060-6GB $268Samsung 850 Evo 500GB $169
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $696SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Ultra Fit 32GB $13
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