IntelBX80662I36100
IntelBX80662I56600K

2 Cores, 4 Threads @3.7GHz, Skylake.
Release date: Q4 2015.

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 171,655 user samples
41,864 User Benchmarks
Best Bench: 66% Base clock 3.3 GHz, turbo 3.7 GHz (avg)
Worst Bench: 46% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 46% Great: 66%
SPEED RANK: 227th / 1128
Gaming
Gaming 60%
Destroyer
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 36%
Jet ski
129,791 User Benchmarks
Best Bench: 105% Base clock 3.5 GHz, turbo 5 GHz (avg)
Worst Bench: 68% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 68% Great: 105%
SPEED RANK: 42nd / 1128
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 52%
Yacht
Effective Speed
Effective CPU Speed
60.3 % 86 % Much faster effective speed.
+43%
SC Mixed
Avg. Single Core Mixed Speed
103 Pts 119 Pts Faster single-core speed.
+16%
QC Mixed
Avg. Quad Core Mixed Speed
280 Pts 445 Pts Much faster quad-core speed.
+59%
MC Mixed
Avg. Multi Core Mixed Speed
287 Pts 455 Pts Much faster multi-core speed.
+59%
SC Mixed
OC Single Core Mixed Speed
114 Pts 142 Pts Faster OC single-core speed.
+25%
QC Mixed
OC Quad Core Mixed Speed
311 Pts 549 Pts Much faster OC quad-core speed.
+77%
MC Mixed
OC Multi Core Mixed Speed
313 Pts 551 Pts Much faster OC multi-core speed.
+76%
Market Share
Based on 11,473,815 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.41 % 1.18 % Hugely higher market share.
+188%
Value
Value For Money
84.1 % 92.8 % Slightly better value.
+10%
User Rating
UBM User Rating
63 % 73 % More popular.
+16%
Price
Price (score)
$120 Much cheaper.
+50%
$238
Age
Newest
36 Months Slightly more recent.
+5%
38 Months
TDP
Thermal Design Power (TDP)
47 Watts Much more energy efficient.
+48%
91 Watts
Cores
CPU Processing Cores
2 cores 4 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz Slightly faster base frequency.
+6%
3.5 GHz
Turbo Clock
Turbo Clock Speed
3.7 GHz 3.9 GHz Slightly faster turbo frequency.
+5%
SC Int
Single Core Integer Speed
111 Pts 137 Pts Faster single-core int speed.
+23%
SC Float
Single Core Floating Point Speed
118 Pts 149 Pts Faster single-core fp speed.
+26%
QC Int
Quad Core Integer Speed
287 Pts 522 Pts Hugely faster quad-core int speed.
+82%
QC Float
Quad Core Floating Point Speed
328 Pts 585 Pts Much faster quad-core fp speed.
+78%
MC Int
Multi Core Integer Speed
288 Pts 525 Pts Hugely faster multi-core int speed.
+82%
MC Float
Multi Core Floating Point Speed
328 Pts 586 Pts Much faster multi-core fp speed.
+79%
Series
CPU Architecture
Skylake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 530
Cache
Cache
3 MB SmartCache 6 MB SmartCache
Embedded Options Available
Embedded Options Available
Yes No
Recommended Price
Recommended Customer Price
$117.00 $242.00 - $243.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.15 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
No Yes

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) October 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.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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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.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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.
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  • - Explore your best upgrade options with a virtual PC build.
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