IntelBX80662I76700K
IntelBX80677I77700K

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

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 409,395 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
196,742 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 82% Base clock 4.2 GHz, turbo 1.1 GHz (avg)
Poor: 82% Great: 110%
SPEED RANK: 21st / 1122
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
Effective Speed
Effective CPU Speed
88.1 % 95.5 % Slightly faster effective speed.
+8%
SC Mixed
Avg. Single Core Mixed Speed
125 Pts 136 Pts Slightly faster single-core speed.
+9%
QC Mixed
Avg. Quad Core Mixed Speed
427 Pts 464 Pts Slightly faster quad-core speed.
+9%
MC Mixed
Avg. Multi Core Mixed Speed
668 Pts 722 Pts Slightly faster multi-core speed.
+8%
SC Mixed
OC Single Core Mixed Speed
142 Pts 153 Pts Slightly faster OC single-core speed.
+8%
QC Mixed
OC Quad Core Mixed Speed
511 Pts 552 Pts Slightly faster OC quad-core speed.
+8%
MC Mixed
OC Multi Core Mixed Speed
759 Pts 819 Pts Slightly faster OC multi-core speed.
+8%
Market Share
Based on 10,346,816 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.86 % 2.18 % Higher market share.
+17%
Value
Value For Money
86.4 % 94.5 % Slightly better value.
+9%
User Rating
UBM User Rating
79 % 125 % Much more popular.
+58%
Price
Price (score)
$307 $300 +2%
Age
Newest
36 Months 19 Months Much more recent.
+47%
TDP
Thermal Design Power (TDP)
91 Watts 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4 GHz 4.2 GHz +5%
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.5 GHz Slightly faster turbo frequency.
+7%
SC Int
Single Core Integer Speed
138 Pts 150 Pts Slightly faster single-core int speed.
+9%
SC Float
Single Core Floating Point Speed
147 Pts 158 Pts Slightly faster single-core fp speed.
+7%
QC Int
Quad Core Integer Speed
502 Pts 537 Pts Slightly faster quad-core int speed.
+7%
QC Float
Quad Core Floating Point Speed
534 Pts 572 Pts Slightly faster quad-core fp speed.
+7%
MC Int
Multi Core Integer Speed
701 Pts 758 Pts Slightly faster multi-core int speed.
+8%
MC Float
Multi Core Floating Point Speed
802 Pts 866 Pts Slightly faster multi-core fp speed.
+8%
Series
CPU Architecture
Skylake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 630
Launch Date
Launch Date
Q3'15 Q1'17
Cache
Cache
8 MB SmartCache 8 MB
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz

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]

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The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 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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AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $120
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HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $945SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
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