IntelBX80677I77700K
IntelBX80662I56600K

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

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

Real World Speed
Performance profile from 881,387 user samples
548,052 User Benchmarks
Best Bench: 97% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 71% Base clock 4.2 GHz, turbo 2.9 GHz (avg)
Poor: 71% Great: 97%
SPEED RANK: 76th / 1316
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 72%
Battleship
333,335 User Benchmarks
Best Bench: 92% Base clock 3.5 GHz, turbo 4.9 GHz (avg)
Worst Bench: 61% Base clock 3.5 GHz, turbo 3.6 GHz (avg)
Poor: 61% Great: 92%
SPEED RANK: 165th / 1316
Gaming
Gaming 79%
Battleship
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 60%
Destroyer
Effective Speed
Effective CPU Speed
86.7 % Slightly faster effective speed.
+9%
79.2 %
Memory
Avg. Memory Latency
90.8 Pts Slightly lower memory latency.
+5%
86.2 Pts
1-Core
Avg. Single Core Mixed Speed
132 Pts Faster single-core speed.
+15%
115 Pts
2-Core
Avg. Dual Core Mixed Speed
253 Pts Faster dual-core speed.
+12%
226 Pts
4-Core
Avg. Quad Core Mixed Speed
447 Pts Slightly faster quad-core speed.
+7%
417 Pts
8-Core
Avg. Octa Core Mixed Speed
662 Pts Much faster octa-core speed.
+56%
424 Pts
Memory
OC Memory Latency
96.8 Pts +1% 95.8 Pts
1-Core
OC Single Core Mixed Speed
147 Pts Slightly faster OC single-core speed.
+7%
138 Pts
2-Core
OC Dual Core Mixed Speed
290 Pts Slightly faster OC dual-core speed.
+5%
275 Pts
4-Core
OC Quad Core Mixed Speed
536 Pts +1% 529 Pts
8-Core
OC Octa Core Mixed Speed
766 Pts Much faster OC octa-core speed.
+44%
531 Pts
Market Share
Based on 44,905,252 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.99 % Hugely higher market share.
+136%
0.42 %
Value
Value For Money
79.6 % 87.1 % Slightly better value.
+9%
User Rating
UBM User Rating
80 % Slightly more popular.
+10%
73 %
Price
Price (score)
$379 $197 Much cheaper.
+48%
Age
Newest
54 Months More recent.
+24%
71 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
4.2 GHz Faster base frequency.
+20%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+15%
3.9 GHz
64-Core
OC Multi Core Mixed Speed
768 Pts Much faster OC 64-core speed.
+44%
533 Pts
64-Core
Avg. Multi Core Mixed Speed
668 Pts Much faster 64-core speed.
+56%
427 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 6 MB SmartCache
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $242.00 - $243.00
Max Turbo Frequency
Max Turbo Frequency
4.50 GHz 3.9 GHz
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
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No

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 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) July 2021 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.

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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.
  • - 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

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Intel Core i5-11400F $239Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
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HDDRAMUSB
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