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 979,255 user samples
611,852 User Benchmarks
Best Bench: 91% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 91%
SPEED RANK: 150th / 1355
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 69%
Battle cruiser
367,403 User Benchmarks
Best Bench: 92% Base clock 3.5 GHz, turbo 4.6 GHz (avg)
Worst Bench: 62% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 62% Great: 92%
SPEED RANK: 184th / 1355
Gaming
Gaming 80%
Battleship
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 61%
Destroyer
Effective Speed
Effective CPU Speed
82.2 % +3% 79.9 %
Memory
Avg. Memory Latency
88.7 Pts +3% 86.5 Pts
1-Core
Avg. Single Core Mixed Speed
120 Pts Slightly faster single-core speed.
+5%
114 Pts
2-Core
Avg. Dual Core Mixed Speed
229 Pts +2% 225 Pts
4-Core
Avg. Quad Core Mixed Speed
408 Pts 423 Pts +4%
8-Core
Avg. Octa Core Mixed Speed
635 Pts Much faster octa-core speed.
+48%
430 Pts
Memory
OC Memory Latency
96.1 Pts +0% 95.8 Pts
1-Core
OC Single Core Mixed Speed
136 Pts 137 Pts +1%
2-Core
OC Dual Core Mixed Speed
263 Pts 271 Pts +3%
4-Core
OC Quad Core Mixed Speed
476 Pts 525 Pts Faster OC quad-core speed.
+10%
8-Core
OC Octa Core Mixed Speed
734 Pts Much faster OC octa-core speed.
+39%
527 Pts
Market Share
Based on 53,522,205 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.67 % Hugely higher market share.
+109%
0.32 %
Value
Value For Money
81.1 % 86.4 % Slightly better value.
+7%
User Rating
UBM User Rating
77 % +3% 75 %
Price
Price (score)
$291 $209 Cheaper.
+28%
Age
Newest
82 Months 82 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 Faster base frequency.
+14%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+8%
3.9 GHz
64-Core
OC Multi Core Mixed Speed
737 Pts Much faster OC 64-core speed.
+39%
531 Pts
64-Core
Avg. Multi Core Mixed Speed
640 Pts Much faster 64-core speed.
+48%
433 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
Max Turbo Frequency
Max Turbo Frequency
4.2 GHz 3.9 GHz
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) June 2022 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 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.
  • - 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 i5-12600K $280Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-12400F $170Nvidia RTX 3050 $250Samsung 850 Evo 120GB $109
Intel Core i7-12700K $380Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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