IntelBX80662I76700K
IntelBX80662I56600K

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

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

Real World Speed
Performance profile from 332,305 user samples
212,653 User Benchmarks
Best Bench: 102% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 74% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 74% Great: 102%
SPEED RANK: 36th / 1122
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
119,652 User Benchmarks
Best Bench: 103% Base clock 3.5 GHz, turbo 4.6 GHz (avg)
Worst Bench: 65% Base clock 3.5 GHz, turbo 0.85 GHz (avg)
Poor: 65% Great: 103%
SPEED RANK: 44th / 1122
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 52%
Yacht
Effective Speed
Effective CPU Speed
88.1 % +3% 85.4 %
SC Mixed
Avg. Single Core Mixed Speed
125 Pts Slightly faster single-core speed.
+6%
118 Pts
QC Mixed
Avg. Quad Core Mixed Speed
427 Pts 442 Pts +4%
MC Mixed
Avg. Multi Core Mixed Speed
668 Pts Much faster multi-core speed.
+48%
452 Pts
SC Mixed
OC Single Core Mixed Speed
142 Pts 142 Pts
QC Mixed
OC Quad Core Mixed Speed
511 Pts 545 Pts Slightly faster OC quad-core speed.
+7%
MC Mixed
OC Multi Core Mixed Speed
759 Pts Much faster OC multi-core speed.
+38%
551 Pts
Market Share
Based on 10,317,612 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.84 % Hugely higher market share.
+80%
1.02 %
Value
Value For Money
86.4 % 98.3 % Slightly better value.
+14%
User Rating
UBM User Rating
77 % Slightly more popular.
+8%
71 %
Price
Price (score)
$307 $200 Much cheaper.
+35%
Age
Newest
36 Months 36 Months
TDP
Thermal Design Power (TDP)
91 Watts 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
4 GHz Slightly faster base frequency.
+14%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+8%
3.9 GHz
SC Int
Single Core Integer Speed
138 Pts +1% 137 Pts
SC Float
Single Core Floating Point Speed
147 Pts 148 Pts +1%
QC Int
Quad Core Integer Speed
502 Pts 525 Pts +5%
QC Float
Quad Core Floating Point Speed
534 Pts 578 Pts Slightly faster quad-core fp speed.
+8%
MC Int
Multi Core Integer Speed
701 Pts Much faster multi-core int speed.
+33%
529 Pts
MC Float
Multi Core Floating Point Speed
802 Pts Much faster multi-core fp speed.
+39%
577 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
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $242.00 - $243.00
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No

More specs » More specs »
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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

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) August 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.
  • 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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CPUGPUSSD
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Intel Core i5-8600K $240AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
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