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 592,463 user samples
307,048 User Benchmarks
Best Bench: 103% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 2.1 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 103%
SPEED RANK: 61st / 1158
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
285,415 User Benchmarks
Best Bench: 109% Base clock 4.2 GHz, turbo 5.15 GHz (avg)
Worst Bench: 82% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 82% Great: 109%
SPEED RANK: 39th / 1158
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed
87.1 % 95.5 % Slightly faster effective speed.
+10%
SC Mixed
Avg. Single Core Mixed Speed
124 Pts 135 Pts Slightly faster single-core speed.
+9%
QC Mixed
Avg. Quad Core Mixed Speed
424 Pts 467 Pts Slightly faster quad-core speed.
+10%
MC Mixed
Avg. Multi Core Mixed Speed
645 Pts 705 Pts Slightly faster multi-core speed.
+9%
SC Mixed
OC Single Core Mixed Speed
142 Pts 150 Pts Slightly faster OC single-core speed.
+6%
QC Mixed
OC Quad Core Mixed Speed
519 Pts 551 Pts Slightly faster OC quad-core speed.
+6%
MC Mixed
OC Multi Core Mixed Speed
750 Pts 798 Pts Slightly faster OC multi-core speed.
+6%
Market Share
Based on 17,786,643 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.56 % 1.65 % Slightly higher market share.
+6%
Value
Value For Money
88.7 % +0% 88.3 %
User Rating
UBM User Rating
86 % 131 % Much more popular.
+52%
Price
Price (score)
$278 Cheaper.
+23%
$359
Age
Newest
46 Months 29 Months Much more recent.
+37%
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 146 Pts Slightly faster single-core int speed.
+6%
SC Float
Single Core Floating Point Speed
146 Pts 157 Pts Slightly faster single-core fp speed.
+8%
QC Int
Quad Core Integer Speed
503 Pts 536 Pts Slightly faster quad-core int speed.
+7%
QC Float
Quad Core Floating Point Speed
535 Pts 573 Pts Slightly faster quad-core fp speed.
+7%
MC Int
Multi Core Integer Speed
682 Pts 727 Pts Slightly faster multi-core int speed.
+7%
MC Float
Multi Core Floating Point Speed
802 Pts 852 Pts Slightly faster multi-core fp speed.
+6%
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]

MORE DETAILS

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) June 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.

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