Intel
IntelBX80662I76700K

6 Cores, 12 Threads @2.66 GHz, Westmere EP.
Release date ≤ Q4 2013.

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 301,304 user samples
5,882 User Benchmarks
Best Bench: 84% Base clock 2.65 GHz, turbo 2.9 GHz (avg)
Worst Bench: 46% Base clock 2.65 GHz, turbo 2.9 GHz (avg)
Poor: 46% Great: 84%
SPEED RANK: 231st / 1158
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 60%
Destroyer
Workstation
Workstation 51%
Yacht
295,422 User Benchmarks
Best Bench: 104% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 72% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 72% Great: 104%
SPEED RANK: 55th / 1158
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
62.4 % 87.9 % Much faster effective speed.
+41%
SC Mixed
Avg. Single Core Mixed Speed
79.8 Pts 124 Pts Much faster single-core speed.
+55%
QC Mixed
Avg. Quad Core Mixed Speed
310 Pts 430 Pts Much faster quad-core speed.
+39%
MC Mixed
Avg. Multi Core Mixed Speed
561 Pts 653 Pts Faster multi-core speed.
+16%
SC Mixed
OC Single Core Mixed Speed
106 Pts 143 Pts Much faster OC single-core speed.
+35%
QC Mixed
OC Quad Core Mixed Speed
415 Pts 524 Pts Faster OC quad-core speed.
+26%
MC Mixed
OC Multi Core Mixed Speed
785 Pts +3% 760 Pts
Market Share
Based on 17,052,071 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.07 % 1.52 % Insanely higher market share.
+2,071%
Value
Value For Money
127 % Much better value.
+45%
87.7 %
User Rating
UBM User Rating
63 % 84 % Much more popular.
+33%
Price
Price (score)
$44 Hugely cheaper.
+85%
$293
Age
Newest
65+ Months 45 Months Much more recent.
+31%
SC Int
Single Core Integer Speed
101 Pts 139 Pts Much faster single-core int speed.
+38%
SC Float
Single Core Floating Point Speed
110 Pts 147 Pts Much faster single-core fp speed.
+34%
QC Int
Quad Core Integer Speed
398 Pts 516 Pts Faster quad-core int speed.
+30%
QC Float
Quad Core Floating Point Speed
427 Pts 551 Pts Faster quad-core fp speed.
+29%
MC Int
Multi Core Integer Speed
751 Pts Slightly faster multi-core int speed.
+9%
690 Pts
MC Float
Multi Core Floating Point Speed
808 Pts 813 Pts +1%
Launch Date
Launch Date
Q1'10 Q3'15
Cache
Cache
12 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 14 nm
Recommended Price
Recommended Customer Price
$996.00 - $999.00 $339.00 - $350.00
Bus Speed
Bus Speed
6.4 GT/s QPI 8 GT/s DMI3
QPI Links
# of QPI Links
2 0
Max Memory Size
Max Memory Size (dependent on memory type)
288 GB 64 GB
Memory Types
Memory Types
DDR3 800/1066/1333 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels
3 2
Memory Bandwidth
Max Memory Bandwidth
32 GB/s 34.1 GB/s
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Package Size
Package Size
42.5mm X 45mm 37.5mm x 37.5mm
Max CPU Configuration
Max CPU Configuration
2 1
Thermal Monitoring Technologies
Thermal Monitoring Technologies
No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology
1.0 2.0
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

More specs » More specs »
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Overclocked from 2.6 GHz to 4.2 GHz stable watercooled. Max temp 60°C. Idle temp 35°C. 40% CPU usage on Battlefield 1. [Jan '18 pacmaN]

MORE DETAILS

The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 2019 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.
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.

 Frequently Asked Questions

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HDDRAMUSB
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