IntelBX80677I77700K
IntelBX80662I76700K

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

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About

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

Real World Speed
Performance profile from 726,176 user samples
345,135 User Benchmarks
Best Bench: 100% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 73% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 73% Great: 100%
SPEED RANK: 40th / 1206
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 61%
Destroyer
381,041 User Benchmarks
Best Bench: 93% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 67% Great: 93%
SPEED RANK: 62nd / 1206
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
86.9 % Slightly faster effective speed.
+8%
80.5 %
1-Core
Avg. Single Core Mixed Speed
135 Pts Slightly faster single-core speed.
+7%
126 Pts
2-Core
Avg. Dual Core Mixed Speed
262 Pts Slightly faster dual-core speed.
+8%
242 Pts
4-Core
Avg. Quad Core Mixed Speed
464 Pts Slightly faster quad-core speed.
+8%
429 Pts
8-Core
Avg. Octa Core Mixed Speed
690 Pts Slightly faster octa-core speed.
+7%
643 Pts
1-Core
OC Single Core Mixed Speed
153 Pts Slightly faster OC single-core speed.
+8%
142 Pts
2-Core
OC Dual Core Mixed Speed
301 Pts Slightly faster OC dual-core speed.
+8%
280 Pts
4-Core
OC Quad Core Mixed Speed
550 Pts Slightly faster OC quad-core speed.
+6%
517 Pts
8-Core
OC Octa Core Mixed Speed
798 Pts Slightly faster OC octa-core speed.
+8%
742 Pts
Market Share
Based on 22,642,520 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.46 % Slightly higher market share.
+7%
1.37 %
Value
Value For Money
79.8 % +1% 78.9 %
User Rating
UBM User Rating
139 % More popular.
+22%
114 %
Price
Price (score)
$378 $298 Cheaper.
+21%
Age
Newest
35 Months Much more recent.
+33%
52 Months
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
4.2 GHz +5% 4 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Slightly faster turbo frequency.
+7%
4.2 GHz
64-Core
OC Multi Core Mixed Speed
802 Pts Slightly faster OC 64-core speed.
+8%
743 Pts
64-Core
Avg. Multi Core Mixed Speed
701 Pts Slightly faster 64-core speed.
+8%
650 Pts
Series
CPU Architecture
Kaby Lake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 630 HD 530
Launch Date
Launch Date
Q1'17 Q3'15
Cache
Cache
8 MB 8 MB SmartCache
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz

More specs » More specs »
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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

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

Processor Rankings (Price vs Performance) December 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop 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.

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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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $260Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $58
Intel Core i7-9700K $369Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
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WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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