IntelBX80662I76700
IntelBX80677I77700K

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

Real World Speed
Performance profile from 69,389 user samples
29,774 User Benchmarks
Best Bench: 89% Base clock 3.4 GHz, turbo 3.7 GHz (avg)
Worst Bench: 69% Base clock 3.4 GHz, turbo 3.65 GHz (avg)
Poor: 69% Great: 89%
SPEED RANK: 33rd / 961
Gaming
Gaming 80%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 59%
Gunboat
39,615 User Benchmarks
Best Bench: 112% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 88% Base clock 4.2 GHz, turbo 4.2 GHz (avg)
Poor: 88% Great: 112%
SPEED RANK: 4th / 961
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
UFO
Workstation
Workstation 74%
Battleship
Effective Speed
Effective CPU Speed
79.9 % -25% 99.9 % Faster effective speed.
+25%
SC Mixed
Avg. Single Core Mixed Speed
111 Pts -25% 139 Pts Faster single-core speed.
+25%
QC Mixed
Avg. Quad Core Mixed Speed
393 Pts -25% 492 Pts Faster quad-core speed.
+25%
MC Mixed
Avg. Multi Core Mixed Speed
602 Pts -24% 746 Pts Faster multi-core speed.
+24%
SC Mixed
OC Single Core Mixed Speed
122 Pts -26% 154 Pts Faster OC single-core speed.
+26%
QC Mixed
OC Quad Core Mixed Speed
449 Pts -27% 569 Pts Faster OC quad-core speed.
+27%
MC Mixed
OC Multi Core Mixed Speed
631 Pts -32% 834 Pts Much faster OC multi-core speed.
+32%
Market Share
Based on 4,068,111 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.22 % -230% 4.02 % Hugely higher market share.
+230%
Value
Value For Money
79.2 % -24% 98.5 % Better value.
+24%
User Rating
UBM User Rating
66 % -111% 139 % Hugely more popular.
+111%
Price
Price (score)
$299 +1% $303 -1%
Age
Newest
21 Months -76% 5 Months Much more recent.
+76%
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 -26% 150 Pts Faster single-core int speed.
+26%
SC Float
Single Core Floating Point Speed
126 Pts -26% 159 Pts Faster single-core fp speed.
+26%
QC Int
Quad Core Integer Speed
437 Pts -26% 552 Pts Faster quad-core int speed.
+26%
QC Float
Quad Core Floating Point Speed
463 Pts -27% 586 Pts Faster quad-core fp speed.
+27%
MC Int
Multi Core Integer Speed
583 Pts -32% 769 Pts Much faster multi-core int speed.
+32%
MC Float
Multi Core Floating Point Speed
660 Pts -33% 877 Pts Much faster multi-core fp speed.
+33%
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) June 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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CPUGPUSSD
Intel Core i7-7700K $303Nvidia GTX 1070 $382Samsung 850 Evo 250GB $100
AMD Ryzen 7 1700 $280AMD RX 480 $608Samsung 850 Pro 256GB $138
Intel Core i5-7600K $232Nvidia GTX 1060-6GB $247Samsung 850 Evo 500GB $153
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $696SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $124SanDisk Ultra Fit 32GB $13
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