IntelBX80662I56600K
IntelBX80677I37100

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

2 Cores, 4 Threads @3.9GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 325,139 user samples
267,918 User Benchmarks
Best Bench: 93% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 61% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 61% Great: 93%
SPEED RANK: 135th / 1265
Gaming
Gaming 80%
Battleship
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 61%
Destroyer
57,221 User Benchmarks
Best Bench: 74% Base clock 3.9 GHz
Worst Bench: 53% Base clock 3.9 GHz, turbo 3.9 GHz (avg)
Poor: 53% Great: 74%
SPEED RANK: 360th / 1265
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 76%
Battleship
Workstation
Workstation 49%
Yacht
Effective Speed
Effective CPU Speed
79.9 % Faster effective speed.
+20%
66.5 %
Memory
Avg. Memory Latency
87.5 Pts +4% 83.9 Pts
1-Core
Avg. Single Core Mixed Speed
115 Pts Slightly faster single-core speed.
+6%
109 Pts
2-Core
Avg. Dual Core Mixed Speed
228 Pts Faster dual-core speed.
+19%
191 Pts
4-Core
Avg. Quad Core Mixed Speed
417 Pts Much faster quad-core speed.
+46%
285 Pts
8-Core
Avg. Octa Core Mixed Speed
426 Pts Much faster octa-core speed.
+47%
290 Pts
Memory
OC Memory Latency
96.3 Pts +2% 94 Pts
1-Core
OC Single Core Mixed Speed
138 Pts Faster OC single-core speed.
+15%
120 Pts
2-Core
OC Dual Core Mixed Speed
275 Pts Faster OC dual-core speed.
+22%
225 Pts
4-Core
OC Quad Core Mixed Speed
529 Pts Much faster OC quad-core speed.
+64%
323 Pts
8-Core
OC Octa Core Mixed Speed
531 Pts Much faster OC octa-core speed.
+64%
324 Pts
Market Share
Based on 33,494,591 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.75 % Hugely higher market share.
+226%
0.23 %
Value
Value For Money
90 % Slightly better value.
+7%
84.4 %
User Rating
UBM User Rating
125 % Hugely more popular.
+92%
65 %
Price
Price (score)
$180 $117 Much cheaper.
+35%
Age
Newest
61 Months 44 Months More recent.
+28%
TDP
Thermal Design Power (TDP)
91 Watts 51 Watts Much more energy efficient.
+44%
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 3.9 GHz Faster base frequency.
+11%
Turbo Clock
Turbo Clock Speed
3.9 GHz 3.9 GHz
64-Core
OC Multi Core Mixed Speed
533 Pts Much faster OC 64-core speed.
+62%
328 Pts
64-Core
Avg. Multi Core Mixed Speed
429 Pts Much faster 64-core speed.
+47%
292 Pts
Series
CPU Architecture
Skylake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 630
Launch Date
Launch Date
Q3'15 Q1'17
Cache
Cache
6 MB SmartCache 3 MB
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $117.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.10 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
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) September 2020 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.

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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.
  • - 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.
  • - Share your opinion by voting.

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