Intel
IntelBX80662I56600K
  

2 Cores, 4 Threads @2.5 GHz, Skylake.
Release date ≈ Q4 2015.

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

Real World Speed
Performance profile from 444,457 user samples
102,213 User Benchmarks
Best Bench: 57% Base clock 2.6 GHz, turbo 2.75 GHz (avg)
Worst Bench: 21% Base clock 2.6 GHz, turbo 1.5 GHz (avg)
Poor: 21% Great: 57%
SPEED RANK: 915th / 1442
Gaming
Gaming 46%
Yacht
Desktop
Desktop 52%
Yacht
Workstation
Workstation 33%
Sail boat
342,244 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 57% Great: 85%
SPEED RANK: 355th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed
45.6 % 72.4 % Much faster effective speed.
+59%
Memory
Avg. Memory Latency
62.3 Pts 83.3 Pts Much lower memory latency.
+34%
1-Core
Avg. Single Core Speed
66.8 Pts 110 Pts Much faster single-core speed.
+65%
2-Core
Avg. Dual Core Speed
119 Pts 218 Pts Hugely faster dual-core speed.
+83%
4-Core
Avg. Quad Core Speed
167 Pts 352 Pts Hugely faster quad-core speed.
+111%
8-Core
Avg. Octa Core Speed
178 Pts 373 Pts Hugely faster octa-core speed.
+110%
Memory
OC Memory Latency
80.6 Pts 95.2 Pts Lower OC memory latency.
+18%
1-Core
OC Single Core Speed
83 Pts 136 Pts Much faster OC single-core speed.
+64%
2-Core
OC Dual Core Speed
148 Pts 269 Pts Hugely faster OC dual-core speed.
+82%
4-Core
OC Quad Core Speed
212 Pts 455 Pts Hugely faster OC quad-core speed.
+115%
8-Core
OC Octa Core Speed
218 Pts 476 Pts Hugely faster OC octa-core speed.
+118%
Market Share
Based on 67,694,506 CPUs tested
Market Share
Market Share (trailing 30 days)
0.11 % 0.47 % Hugely higher market share.
+327%
User Rating
UBM User Rating
53 % 74 % Much more popular.
+40%
Age
Newest
102+ Months +2% 104 Months
64-Core
OC Multi Core Speed
220 Pts 484 Pts Hugely faster OC 64-core speed.
+120%
64-Core
Avg. Multi Core Speed
178 Pts 378 Pts Hugely faster 64-core speed.
+112%
Cache
Cache
4 MB SmartCache 6 MB SmartCache
Recommended Price
Recommended Customer Price
$393.00 $242.00 - $243.00
Max Turbo Frequency
Max Turbo Frequency
3.1 GHz 3.9 GHz
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR4-2133, LPDDR3-1866, DDR3L-1600 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 520 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency
300 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
32 GB 64 GB
Package Size
Package Size
42mm X 24mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Configurations
PCI Express Configurations ‡
1x4, 2x2, 1x2+2x1 and 4x1 Up to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
12 16

More specs » More specs »
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Good laptop CPU [Oct '18 Asdfguy86]

MORE DETAILS

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) April 2024 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 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 value for money 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
  • - 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $131Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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