IntelBX80677I77700K
IntelBX80662I56600

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

4 Cores, 4 Threads @3.3GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 595,739 user samples
515,807 User Benchmarks
Best Bench: 96% Base clock 4.2 GHz, turbo 4.8 GHz (avg)
Worst Bench: 72% Base clock 4.2 GHz, turbo 4.6 GHz (avg)
Poor: 72% Great: 96%
SPEED RANK: 72nd / 1316
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 73%
Battleship
79,932 User Benchmarks
Best Bench: 83% Base clock 2.5 GHz, turbo 3.3 GHz (avg)
Worst Bench: 59% Base clock 3.3 GHz, turbo 3.6 GHz (avg)
Poor: 59% Great: 83%
SPEED RANK: 247th / 1316
Gaming
Gaming 74%
Battleship
Desktop
Desktop 79%
Battleship
Workstation
Workstation 56%
Gunboat
Effective Speed
Effective CPU Speed
87 % Faster effective speed.
+17%
74.3 %
Memory
Avg. Memory Latency
91.2 Pts Lower memory latency.
+11%
82.2 Pts
1-Core
Avg. Single Core Mixed Speed
132 Pts Faster single-core speed.
+25%
106 Pts
2-Core
Avg. Dual Core Mixed Speed
253 Pts Faster dual-core speed.
+21%
209 Pts
4-Core
Avg. Quad Core Mixed Speed
447 Pts Faster quad-core speed.
+17%
383 Pts
8-Core
Avg. Octa Core Mixed Speed
672 Pts Much faster octa-core speed.
+73%
389 Pts
Memory
OC Memory Latency
96.9 Pts Slightly lower OC memory latency.
+5%
92.1 Pts
1-Core
OC Single Core Mixed Speed
148 Pts Faster OC single-core speed.
+24%
119 Pts
2-Core
OC Dual Core Mixed Speed
289 Pts Faster OC dual-core speed.
+26%
230 Pts
4-Core
OC Quad Core Mixed Speed
532 Pts Faster OC quad-core speed.
+22%
436 Pts
8-Core
OC Octa Core Mixed Speed
774 Pts Much faster OC octa-core speed.
+78%
436 Pts
Market Share
Based on 46,449,241 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.93 % Hugely higher market share.
+520%
0.15 %
Value
Value For Money
79.9 % +4% 76.8 %
User Rating
UBM User Rating
81 % More popular.
+27%
64 %
Price
Price (score)
$379 $246 Much cheaper.
+35%
Age
Newest
56 Months More recent.
+22%
72 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 Faster base frequency.
+27%
3.3 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+15%
3.9 GHz
64-Core
OC Multi Core Mixed Speed
774 Pts Much faster OC 64-core speed.
+76%
439 Pts
64-Core
Avg. Multi Core Mixed Speed
680 Pts Much faster 64-core speed.
+73%
392 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 $213.00 - $224.00
Max Turbo Frequency
Max Turbo Frequency
4.50 GHz 3.9 GHz
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
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) September 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.

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.
  • - 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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