IntelBX80662I56600K
IntelBX80677I77700K

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

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About

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

Real World Speed
Performance profile from 509,386 user samples
208,241 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 51% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 51% Great: 85%
SPEED RANK: 94th / 1182
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 42%
Speed boat
301,145 User Benchmarks
Best Bench: 96% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 67% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 67% Great: 96%
SPEED RANK: 39th / 1182
Gaming
Gaming 83%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 62%
Destroyer
Effective Speed
Effective CPU Speed
68.9 % 83.3 % Faster effective speed.
+21%
1-Core
Avg. Single Core Mixed Speed
117 Pts 136 Pts Faster single-core speed.
+16%
2-Core
Avg. Dual Core Mixed Speed
232 Pts 264 Pts Slightly faster dual-core speed.
+14%
4-Core
Avg. Quad Core Mixed Speed
428 Pts 468 Pts Slightly faster quad-core speed.
+9%
8-Core
Avg. Octa Core Mixed Speed
437 Pts 695 Pts Much faster octa-core speed.
+59%
64-Core
Avg. Multi Core Mixed Speed
440 Pts 704 Pts Much faster 64-core speed.
+60%
1-Core
OC Single Core Mixed Speed
139 Pts 150 Pts Slightly faster OC single-core speed.
+8%
2-Core
OC Dual Core Mixed Speed
276 Pts 297 Pts Slightly faster OC dual-core speed.
+8%
4-Core
OC Quad Core Mixed Speed
532 Pts 554 Pts +4%
8-Core
OC Octa Core Mixed Speed
533 Pts 787 Pts Much faster OC octa-core speed.
+48%
64-Core
OC Multi Core Mixed Speed
534 Pts 790 Pts Much faster OC 64-core speed.
+48%
Market Share
Based on 19,401,616 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.91 % 1.44 % Much higher market share.
+58%
Value
Value For Money
74.5 % 80.2 % Slightly better value.
+8%
User Rating
UBM User Rating
75 % 106 % Much more popular.
+41%
Price
Price (score)
$210 Much cheaper.
+34%
$319
Age
Newest
48 Months 31 Months Much more recent.
+35%
TDP
Thermal Design Power (TDP)
91 Watts 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.5 GHz 4.2 GHz Faster base frequency.
+20%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.5 GHz Faster turbo frequency.
+15%
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
6 MB SmartCache 8 MB
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $339.00 - $350.00
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
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes

More specs » More specs »
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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

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 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 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.

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

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