IntelBX80677I77700K
IntelBX80662I56500

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

4 Cores, 4 Threads
@3.2GHz Skylake (2015)

Real World Speed
Performance profile from 136,749 user samples
90,944 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 85% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 85% Great: 111%
SPEED RANK: 15th / 980
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 73%
Battleship
45,805 User Benchmarks
Best Bench: 80% Base clock 3.2 GHz, turbo 3.2 GHz (avg)
Worst Bench: 60% Base clock 3.2 GHz, turbo 0.8 GHz (avg)
Poor: 60% Great: 80%
SPEED RANK: 79th / 980
Gaming
Gaming 74%
Battleship
Desktop
Desktop 72%
Battleship
Workstation
Workstation 45%
Speed boat
Effective Speed
Effective CPU Speed
98.4 % Much faster effective speed.
+33%
73.7 % -33%
SC Mixed
Avg. Single Core Mixed Speed
138 Pts Much faster single-core speed.
+37%
101 Pts -37%
QC Mixed
Avg. Quad Core Mixed Speed
483 Pts Faster quad-core speed.
+26%
383 Pts -26%
MC Mixed
Avg. Multi Core Mixed Speed
731 Pts Hugely faster multi-core speed.
+86%
393 Pts -86%
SC Mixed
OC Single Core Mixed Speed
154 Pts Much faster OC single-core speed.
+38%
112 Pts -38%
QC Mixed
OC Quad Core Mixed Speed
562 Pts Much faster OC quad-core speed.
+35%
416 Pts -35%
MC Mixed
OC Multi Core Mixed Speed
819 Pts Hugely faster OC multi-core speed.
+95%
420 Pts -95%
Market Share
Based on 5,970,135 CPUs tested.
Market Share
Market Share (trailing 30 days)
3.55 % Hugely higher market share.
+255%
1 % -255%
Value
Value For Money
99.9 % Slightly better value.
+13%
88.4 % -13%
User Rating
UBM User Rating
162 % Hugely more popular.
+119%
74 % -119%
Price
Price (score)
$280 -36% $180 Much cheaper.
+36%
Age
Newest
10 Months Much more recent.
+62%
26 Months -62%
TDP
Thermal Design Power (TDP)
91 Watts -29% 65 Watts More energy efficient.
+29%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads -100%
Lithography
Manufacturing process
14 nm 0% 14 nm 0%
Base Clock
Base Clock Speed
4.2 GHz Much faster base frequency.
+31%
3.2 GHz -31%
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+25%
3.6 GHz -25%
SC Int
Single Core Integer Speed
151 Pts Much faster single-core int speed.
+40%
108 Pts -40%
SC Float
Single Core Floating Point Speed
158 Pts Much faster single-core fp speed.
+37%
115 Pts -37%
QC Int
Quad Core Integer Speed
547 Pts Much faster quad-core int speed.
+35%
406 Pts -35%
QC Float
Quad Core Floating Point Speed
578 Pts Much faster quad-core fp speed.
+35%
429 Pts -35%
MC Int
Multi Core Integer Speed
757 Pts Hugely faster multi-core int speed.
+86%
407 Pts -86%
MC Float
Multi Core Floating Point Speed
864 Pts Hugely faster multi-core fp speed.
+100%
431 Pts -100%
Series
CPU Architecture
Kaby Lake (2017) Skylake (2015)
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
Embedded Options Available
Embedded Options Available
No Yes
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $192.00 - $202.00
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
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
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) November 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 $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $270AMD RX 480 $240Samsung 850 Evo 500GB $140
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $260Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $192SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $10
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