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 381,314 user samples
234,440 User Benchmarks
Best Bench: 103% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 74% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 74% Great: 103%
SPEED RANK: 44th / 1143
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 66%
Battle cruiser
146,874 User Benchmarks
Best Bench: 103% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 63% Base clock 3.5 GHz, turbo 1.1 GHz (avg)
Poor: 63% Great: 103%
SPEED RANK: 58th / 1143
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 51%
Yacht
Effective Speed
Effective CPU Speed
88.7 % Slightly faster effective speed.
+5%
84.2 %
SC Mixed
Avg. Single Core Mixed Speed
126 Pts Slightly faster single-core speed.
+7%
118 Pts
QC Mixed
Avg. Quad Core Mixed Speed
431 Pts 433 Pts +0%
MC Mixed
Avg. Multi Core Mixed Speed
667 Pts Much faster multi-core speed.
+50%
444 Pts
SC Mixed
OC Single Core Mixed Speed
143 Pts +1% 141 Pts
QC Mixed
OC Quad Core Mixed Speed
519 Pts 539 Pts +4%
MC Mixed
OC Multi Core Mixed Speed
762 Pts Much faster OC multi-core speed.
+39%
548 Pts
Market Share
Based on 12,890,891 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.87 % Much higher market share.
+45%
1.29 %
Value
Value For Money
87.9 % 91.8 % +4%
User Rating
UBM User Rating
87 % Slightly more popular.
+10%
79 %
Price
Price (score)
$299 $232 Cheaper.
+22%
Age
Newest
40 Months 40 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
139 Pts +2% 136 Pts
SC Float
Single Core Floating Point Speed
148 Pts 149 Pts +1%
QC Int
Quad Core Integer Speed
503 Pts 516 Pts +3%
QC Float
Quad Core Floating Point Speed
541 Pts 578 Pts Slightly faster quad-core fp speed.
+7%
MC Int
Multi Core Integer Speed
695 Pts Much faster multi-core int speed.
+33%
521 Pts
MC Float
Multi Core Floating Point Speed
809 Pts Much faster multi-core fp speed.
+39%
581 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 »
ADVERTISEMENT

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) December 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]

ADVERTISEMENT

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.

UserBenchmark of the month

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $330Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
Intel Core i5-8600K $240Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback