IntelBX80662I76700
IntelBX80662I56600K

4 Cores, 8 Threads @3.4GHz, Skylake.
Release date: Q3 2015.

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

Real World Speed
Performance profile from 581,899 user samples
248,564 User Benchmarks
Best Bench: 84% Base clock 3.4 GHz, turbo 3.65 GHz (avg)
Worst Bench: 63% Base clock 3.4 GHz, turbo 0.8 GHz (avg)
Poor: 63% Great: 84%
SPEED RANK: 230th / 1316
Gaming
Gaming 75%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 62%
Destroyer
333,335 User Benchmarks
Best Bench: 92% Base clock 3.5 GHz, turbo 4.9 GHz (avg)
Worst Bench: 61% Base clock 3.5 GHz, turbo 3.6 GHz (avg)
Poor: 61% Great: 92%
SPEED RANK: 166th / 1316
Gaming
Gaming 79%
Battleship
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 60%
Destroyer
Effective Speed
Effective CPU Speed
75.1 % 79.2 % Slightly faster effective speed.
+6%
Memory
Avg. Memory Latency
82.9 Pts 86.2 Pts +4%
1-Core
Avg. Single Core Mixed Speed
107 Pts 115 Pts Slightly faster single-core speed.
+7%
2-Core
Avg. Dual Core Mixed Speed
204 Pts 226 Pts Faster dual-core speed.
+11%
4-Core
Avg. Quad Core Mixed Speed
365 Pts 417 Pts Faster quad-core speed.
+14%
8-Core
Avg. Octa Core Mixed Speed
542 Pts Faster octa-core speed.
+28%
424 Pts
Memory
OC Memory Latency
92.6 Pts 95.8 Pts +3%
1-Core
OC Single Core Mixed Speed
120 Pts 138 Pts Faster OC single-core speed.
+15%
2-Core
OC Dual Core Mixed Speed
235 Pts 275 Pts Faster OC dual-core speed.
+17%
4-Core
OC Quad Core Mixed Speed
434 Pts 529 Pts Faster OC quad-core speed.
+22%
8-Core
OC Octa Core Mixed Speed
613 Pts Faster OC octa-core speed.
+15%
531 Pts
Market Share
Based on 44,945,033 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.6 % Much higher market share.
+40%
0.43 %
Value
Value For Money
70.4 % 87.1 % Better value.
+24%
User Rating
UBM User Rating
60 % 73 % More popular.
+22%
Price
Price (score)
$350 $197 Much cheaper.
+44%
Age
Newest
70 Months +1% 71 Months
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+29%
91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.4 GHz 3.5 GHz +3%
Turbo Clock
Turbo Clock Speed
4 GHz +3% 3.9 GHz
64-Core
OC Multi Core Mixed Speed
616 Pts Faster OC 64-core speed.
+16%
533 Pts
64-Core
Avg. Multi Core Mixed Speed
549 Pts Faster 64-core speed.
+29%
427 Pts
Series
CPU Architecture
Skylake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 530
Cache
Cache
8 MB SmartCache 6 MB SmartCache
Embedded Options Available
Embedded Options Available
Yes No
Recommended Price
Recommended Customer Price
$303.00 - $312.00 $242.00 - $243.00
Max Turbo Frequency
Max Turbo Frequency
4 GHz 3.9 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
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) July 2021 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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.
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.
  • - 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.

 Frequently Asked Questions

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The Best.
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