IntelBX80662I76700
IntelBX80677I77700K

4 Cores, 8 Threads
@3.4GHz Skylake (2015)

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

Real World Speed
Performance profile from 107,028 user samples
35,715 User Benchmarks
Best Bench: 89% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Worst Bench: 70% Base clock 3.4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 89%
SPEED RANK: 38th / 970
Gaming
Gaming 80%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 59%
Gunboat
71,313 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 87% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 87% Great: 111%
SPEED RANK: 8th / 970
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
79.5 % -24% 98.7 % Faster effective speed.
+24%
SC Mixed
Avg. Single Core Mixed Speed
110 Pts -25% 138 Pts Faster single-core speed.
+25%
QC Mixed
Avg. Quad Core Mixed Speed
392 Pts -23% 484 Pts Faster quad-core speed.
+23%
MC Mixed
Avg. Multi Core Mixed Speed
600 Pts -24% 742 Pts Faster multi-core speed.
+24%
SC Mixed
OC Single Core Mixed Speed
122 Pts -25% 153 Pts Faster OC single-core speed.
+25%
QC Mixed
OC Quad Core Mixed Speed
456 Pts -23% 562 Pts Faster OC quad-core speed.
+23%
MC Mixed
OC Multi Core Mixed Speed
631 Pts -30% 819 Pts Faster OC multi-core speed.
+30%
Market Share
Based on 5,074,532 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.07 % -304% 4.32 % Hugely higher market share.
+304%
Value
Value For Money
79 % -20% 94.8 % Better value.
+20%
User Rating
UBM User Rating
69 % -125% 155 % Hugely more popular.
+125%
Price
Price (score)
$297 Slightly cheaper.
+9%
$325 -9%
Age
Newest
24 Months -67% 8 Months Much more recent.
+67%
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+29%
91 Watts -29%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads 0% 8 threads 0%
Lithography
Manufacturing process
14 nm 0% 14 nm 0%
Base Clock
Base Clock Speed
3.4 GHz -24% 4.2 GHz Faster base frequency.
+24%
Turbo Clock
Turbo Clock Speed
4 GHz -12% 4.5 GHz Slightly faster turbo frequency.
+12%
SC Int
Single Core Integer Speed
119 Pts -25% 149 Pts Faster single-core int speed.
+25%
SC Float
Single Core Floating Point Speed
125 Pts -26% 158 Pts Faster single-core fp speed.
+26%
QC Int
Quad Core Integer Speed
444 Pts -24% 550 Pts Faster quad-core int speed.
+24%
QC Float
Quad Core Floating Point Speed
468 Pts -24% 582 Pts Faster quad-core fp speed.
+24%
MC Int
Multi Core Integer Speed
584 Pts -29% 754 Pts Faster multi-core int speed.
+29%
MC Float
Multi Core Floating Point Speed
660 Pts -31% 867 Pts Much faster multi-core fp speed.
+31%
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
8 MB SmartCache 8 MB
Embedded Options Available
Embedded Options Available
Yes No
Recommended Price
Recommended Customer Price
$303.00 - $312.00 $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
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
vPro Tech
Intel® vPro Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
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

Processor Rankings (Price vs Performance) September 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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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The Best.
CPUGPUSSD
Intel Core i7-7700K $325Nvidia GTX 1070 $410Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $295AMD RX 480 $350Samsung 850 Pro 256GB $119
Intel Core i5-7600K $210Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $711SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $70Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Extreme 16GB $20
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