IntelBX80677I77700K
IntelBX80662I56500

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

4 Cores, 4 Threads @3.2GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 335,063 user samples
249,277 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 83% Base clock 4.2 GHz, turbo 0.9 GHz (avg)
Poor: 83% Great: 111%
SPEED RANK: 34th / 1157
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
85,786 User Benchmarks
Best Bench: 78% Base clock 2.2 GHz, turbo 3.2 GHz (avg)
Worst Bench: 54% Base clock 3.2 GHz, turbo 3.3 GHz (avg)
Poor: 54% Great: 78%
SPEED RANK: 155th / 1157
Gaming
Gaming 70%
Battle cruiser
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 42%
Speed boat
Effective Speed
Effective CPU Speed
96.4 % Much faster effective speed.
+38%
69.6 %
SC Mixed
Avg. Single Core Mixed Speed
136 Pts Much faster single-core speed.
+39%
97.9 Pts
QC Mixed
Avg. Quad Core Mixed Speed
472 Pts Much faster quad-core speed.
+32%
357 Pts
MC Mixed
Avg. Multi Core Mixed Speed
715 Pts Hugely faster multi-core speed.
+94%
369 Pts
SC Mixed
OC Single Core Mixed Speed
153 Pts Much faster OC single-core speed.
+39%
110 Pts
QC Mixed
OC Quad Core Mixed Speed
558 Pts Much faster OC quad-core speed.
+38%
405 Pts
MC Mixed
OC Multi Core Mixed Speed
807 Pts Hugely faster OC multi-core speed.
+98%
408 Pts
Market Share
Based on 16,501,535 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.6 % Hugely higher market share.
+111%
0.76 %
Value
Value For Money
88.5 % Slightly better value.
+12%
79.3 %
User Rating
UBM User Rating
131 % Hugely more popular.
+87%
70 %
Price
Price (score)
$366 $206 Much cheaper.
+44%
Age
Newest
27 Months Much more recent.
+37%
43 Months
TDP
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
+29%
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 Much faster base frequency.
+31%
3.2 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+25%
3.6 GHz
SC Int
Single Core Integer Speed
150 Pts Much faster single-core int speed.
+42%
106 Pts
SC Float
Single Core Floating Point Speed
158 Pts Much faster single-core fp speed.
+37%
115 Pts
QC Int
Quad Core Integer Speed
541 Pts Much faster quad-core int speed.
+38%
391 Pts
QC Float
Quad Core Floating Point Speed
581 Pts Much faster quad-core fp speed.
+36%
427 Pts
MC Int
Multi Core Integer Speed
737 Pts Hugely faster multi-core int speed.
+88%
392 Pts
MC Float
Multi Core Floating Point Speed
867 Pts Hugely faster multi-core fp speed.
+102%
429 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
Embedded Options Available
Embedded Options Available
No Yes
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $192.00 - $202.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
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
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes

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

Processor Rankings (Price vs Performance) April 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.

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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The Best.
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