IntelBX80662I36100
IntelBX80677I77700K

2 Cores, 4 Threads
@3.7GHz Skylake (2015)

4 Cores, 8 Threads
@4.2GHz Kaby Lake (2017)

Real World Speed
Performance profile from 215,599 user samples
37,359 User Benchmarks
Best Bench: 67% Base clock 2.8 GHz, turbo 3.7 GHz (avg)
Worst Bench: 46% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 46% Great: 67%
SPEED RANK: 214th / 1117
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 36%
Jet ski
178,240 User Benchmarks
Best Bench: 109% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 86% Base clock 4.2 GHz, turbo 4.45 GHz (avg)
Poor: 86% Great: 109%
SPEED RANK: 20th / 1117
Gaming
Gaming 97%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 72%
Battleship
Effective Speed
Effective CPU Speed
60.8 % 96.9 % Much faster effective speed.
+59%
SC Mixed
Avg. Single Core Mixed Speed
104 Pts 138 Pts Much faster single-core speed.
+33%
QC Mixed
Avg. Quad Core Mixed Speed
282 Pts 470 Pts Much faster quad-core speed.
+67%
MC Mixed
Avg. Multi Core Mixed Speed
290 Pts 734 Pts Hugely faster multi-core speed.
+153%
SC Mixed
OC Single Core Mixed Speed
114 Pts 152 Pts Much faster OC single-core speed.
+33%
QC Mixed
OC Quad Core Mixed Speed
312 Pts 552 Pts Much faster OC quad-core speed.
+77%
MC Mixed
OC Multi Core Mixed Speed
314 Pts 815 Pts Hugely faster OC multi-core speed.
+160%
Market Share
Based on 9,844,806 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.41 % 2.25 % Hugely higher market share.
+449%
Value
Value For Money
87.7 % 95.8 % Slightly better value.
+9%
User Rating
UBM User Rating
62 % 123 % Hugely more popular.
+98%
Price
Price (score)
$110 Much cheaper.
+63%
$300
Age
Newest
33 Months 18 Months Much more recent.
+45%
TDP
Thermal Design Power (TDP)
47 Watts Much more energy efficient.
+48%
91 Watts
Cores
CPU Processing Cores
2 cores 4 cores Hugely higher core count.
+100%
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
3.7 GHz 4.2 GHz Slightly faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
3.7 GHz 4.5 GHz Faster turbo frequency.
+22%
SC Int
Single Core Integer Speed
111 Pts 148 Pts Much faster single-core int speed.
+33%
SC Float
Single Core Floating Point Speed
118 Pts 157 Pts Much faster single-core fp speed.
+33%
QC Int
Quad Core Integer Speed
288 Pts 536 Pts Hugely faster quad-core int speed.
+86%
QC Float
Quad Core Floating Point Speed
328 Pts 573 Pts Much faster quad-core fp speed.
+75%
MC Int
Multi Core Integer Speed
289 Pts 750 Pts Hugely faster multi-core int speed.
+160%
MC Float
Multi Core Floating Point Speed
329 Pts 863 Pts Hugely faster multi-core fp speed.
+162%
Series
CPU Architecture
Skylake (2015) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 630
Launch Date
Launch Date
Q3'15 Q1'17
Cache
Cache
3 MB SmartCache 8 MB
Embedded Options Available
Embedded Options Available
Yes No
Recommended Price
Recommended Customer Price
$117.00 $339.00 - $350.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.05 GHz 1.15 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology
No 2.0
TSX-NI
Intel® TSX-NI
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]

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Processor Rankings (Price vs Performance) July 2018 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.
CPUGPUSSD
Intel Core i7-8700K $317Nvidia GTX 1070 $413Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $120
Intel Core i7-7700K $300AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $945SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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