Intel
IntelBX80662I56600K
  

4 Cores, 8 Threads
@2.2 GHz Crystal Well

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

Real World Speed
Performance profile from 111,810 user samples
481 User Benchmarks
Best Bench: 72% Base clock 2.2 GHz, turbo 3.4 GHz (avg)
Worst Bench: 38% Base clock 2.2 GHz, turbo 0.8 GHz (avg)
Poor: 38% Great: 72%
SPEED RANK: 205th / 1084
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 62%
Destroyer
Workstation
Workstation 43%
Speed boat
111,329 User Benchmarks
Best Bench: 107% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 70% Great: 107%
SPEED RANK: 38th / 1084
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 54%
Yacht
Effective Speed
Effective CPU Speed
60.8 % 89.1 % Much faster effective speed.
+47%
SC Mixed
Avg. Single Core Mixed Speed
88.2 Pts 122 Pts Much faster single-core speed.
+38%
QC Mixed
Avg. Quad Core Mixed Speed
296 Pts 463 Pts Much faster quad-core speed.
+56%
MC Mixed
Avg. Multi Core Mixed Speed
422 Pts 473 Pts Slightly faster multi-core speed.
+12%
SC Mixed
OC Single Core Mixed Speed
99.4 Pts 145 Pts Much faster OC single-core speed.
+46%
QC Mixed
OC Quad Core Mixed Speed
369 Pts 564 Pts Much faster OC quad-core speed.
+53%
MC Mixed
OC Multi Core Mixed Speed
503 Pts 567 Pts Slightly faster OC multi-core speed.
+13%
Market Share
Based on 8,433,262 CPUs tested.
Market Share
Market Share (trailing 30 days)
0 % 1.13 % Insanely higher market share.
+∞%
User Rating
UBM User Rating
51 % 87 % Much more popular.
+71%
Age
Newest
40 Months 32 Months More recent.
+20%
SC Int
Single Core Integer Speed
98.9 Pts 141 Pts Much faster single-core int speed.
+43%
SC Float
Single Core Floating Point Speed
101 Pts 149 Pts Much faster single-core fp speed.
+48%
QC Int
Quad Core Integer Speed
370 Pts 549 Pts Much faster quad-core int speed.
+48%
QC Float
Quad Core Floating Point Speed
374 Pts 584 Pts Much faster quad-core fp speed.
+56%
MC Int
Multi Core Integer Speed
477 Pts 550 Pts Faster multi-core int speed.
+15%
MC Float
Multi Core Floating Point Speed
512 Pts 585 Pts Slightly faster multi-core fp speed.
+14%
Launch Date
Launch Date
Q3'14 Q3'15
Cache
Cache
6 MB 6 MB SmartCache
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$434.00 $242.00 - $243.00
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3L 1333/1600 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth
25.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡
Intel® Iris™ Pro Graphics 5200 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency
200 MHz 350 MHz
Graphics Output
Graphics Output
eDP/DP/HDMI/VGA eDP/DP/HDMI/DVI
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.2 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Package Size
Package Size
37.5mm x 32mm x 1.65mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3 3.0
PCI Express Configurations
PCI Express Configurations ‡
1x16 or 2x8 or 1x8 2x4 Up to 1x16, 2x8, 1x8+2x4

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) April 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.

UserBenchmark of the month

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $80
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $170AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $45
Seagate Barracuda 2TB (2016) $36Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $12
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