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 190,989 user samples
34,941 User Benchmarks
Best Bench: 67% Base clock 3.1 GHz, turbo 3.7 GHz (avg)
Worst Bench: 50% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 50% Great: 67%
SPEED RANK: 203rd / 1100
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 70%
Battleship
Workstation
Workstation 37%
Jet ski
156,048 User Benchmarks
Best Bench: 113% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 87% Base clock 4.2 GHz, turbo 1.7 GHz (avg)
Poor: 87% Great: 113%
SPEED RANK: 17th / 1100
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
UFO
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
62.1 % 99.7 % Much faster effective speed.
+61%
SC Mixed
Avg. Single Core Mixed Speed
108 Pts 140 Pts Faster single-core speed.
+30%
QC Mixed
Avg. Quad Core Mixed Speed
286 Pts 489 Pts Much faster quad-core speed.
+71%
MC Mixed
Avg. Multi Core Mixed Speed
294 Pts 741 Pts Hugely faster multi-core speed.
+152%
SC Mixed
OC Single Core Mixed Speed
116 Pts 155 Pts Much faster OC single-core speed.
+34%
QC Mixed
OC Quad Core Mixed Speed
313 Pts 566 Pts Hugely faster OC quad-core speed.
+81%
MC Mixed
OC Multi Core Mixed Speed
316 Pts 826 Pts Hugely faster OC multi-core speed.
+161%
Market Share
Based on 8,466,279 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.5 % 2.52 % Hugely higher market share.
+404%
Value
Value For Money
89.1 % 99.9 % Slightly better value.
+12%
User Rating
UBM User Rating
76 % 134 % Much more popular.
+76%
Price
Price (score)
$112 Much cheaper.
+62%
$290
Age
Newest
30 Months 15 Months Much more recent.
+50%
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
114 Pts 152 Pts Much faster single-core int speed.
+33%
SC Float
Single Core Floating Point Speed
118 Pts 159 Pts Much faster single-core fp speed.
+35%
QC Int
Quad Core Integer Speed
289 Pts 548 Pts Hugely faster quad-core int speed.
+90%
QC Float
Quad Core Floating Point Speed
329 Pts 581 Pts Much faster quad-core fp speed.
+77%
MC Int
Multi Core Integer Speed
291 Pts 761 Pts Hugely faster multi-core int speed.
+162%
MC Float
Multi Core Floating Point Speed
331 Pts 873 Pts Hugely faster multi-core fp speed.
+164%
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) April 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $136
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Ultra Fit 32GB $12
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