IntelBX80662I56600K
IntelBX80662I36100

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

2 Cores, 4 Threads
@3.7GHz Skylake (2015)

Real World Speed
Performance profile from 157,763 user samples
120,403 User Benchmarks
Best Bench: 107% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 64% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 64% Great: 107%
SPEED RANK: 40th / 1104
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 53%
Yacht
37,360 User Benchmarks
Best Bench: 67% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Worst Bench: 49% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 49% Great: 67%
SPEED RANK: 202nd / 1104
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 70%
Battleship
Workstation
Workstation 37%
Jet ski
Effective Speed
Effective CPU Speed
86.8 % Much faster effective speed.
+40%
62 %
SC Mixed
Avg. Single Core Mixed Speed
119 Pts Slightly faster single-core speed.
+10%
108 Pts
QC Mixed
Avg. Quad Core Mixed Speed
451 Pts Much faster quad-core speed.
+58%
285 Pts
MC Mixed
Avg. Multi Core Mixed Speed
461 Pts Much faster multi-core speed.
+57%
293 Pts
SC Mixed
OC Single Core Mixed Speed
143 Pts Faster OC single-core speed.
+23%
116 Pts
QC Mixed
OC Quad Core Mixed Speed
564 Pts Hugely faster OC quad-core speed.
+80%
313 Pts
MC Mixed
OC Multi Core Mixed Speed
565 Pts Much faster OC multi-core speed.
+79%
316 Pts
Market Share
Based on 8,844,688 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.27 % Hugely higher market share.
+176%
0.46 %
Value
Value For Money
96.3 % +4% 92.6 %
User Rating
UBM User Rating
78 % More popular.
+18%
66 %
Price
Price (score)
$221 $100 Much cheaper.
+55%
Age
Newest
33 Months 31 Months Slightly more recent.
+6%
TDP
Thermal Design Power (TDP)
91 Watts 47 Watts Much more energy efficient.
+48%
Cores
CPU Processing Cores
4 cores Hugely higher core count.
+100%
2 cores
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.5 GHz 3.7 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
3.9 GHz Slightly faster turbo frequency.
+5%
3.7 GHz
SC Int
Single Core Integer Speed
139 Pts Faster single-core int speed.
+23%
113 Pts
SC Float
Single Core Floating Point Speed
147 Pts Faster single-core fp speed.
+25%
118 Pts
QC Int
Quad Core Integer Speed
548 Pts Hugely faster quad-core int speed.
+90%
289 Pts
QC Float
Quad Core Floating Point Speed
579 Pts Much faster quad-core fp speed.
+76%
329 Pts
MC Int
Multi Core Integer Speed
548 Pts Hugely faster multi-core int speed.
+88%
291 Pts
MC Float
Multi Core Floating Point Speed
583 Pts Much faster multi-core fp speed.
+77%
330 Pts
Series
CPU Architecture
Skylake (2015) Skylake (2015)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 530
Cache
Cache
6 MB SmartCache 3 MB SmartCache
Embedded Options Available
Embedded Options Available
No Yes
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $117.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
Yes No

More specs » More specs »
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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]

MORE DETAILS

Processor Rankings (Price vs Performance) May 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]

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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.

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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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The Best.
CPUGPUSSD
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Intel Core i7-8700K $325Nvidia GTX 1060-6GB $295Samsung 850 Evo 500GB $137
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HDDRAMUSB
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Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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