IntelBX80677I77700K
IntelBX80662I56600

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

4 Cores, 4 Threads
@3.3GHz Skylake (2015)

Real World Speed
Performance profile from 161,098 user samples
137,501 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 85% Base clock 4.2 GHz, turbo 0.85 GHz (avg)
Poor: 85% Great: 111%
SPEED RANK: 16th / 985
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 73%
Battleship
23,597 User Benchmarks
Best Bench: 87% Base clock 3.3 GHz
Worst Bench: 61% Base clock 3.3 GHz, turbo 0.55 GHz (avg)
Poor: 61% Great: 87%
SPEED RANK: 54th / 985
Gaming
Gaming 79%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed
98.7 % Faster effective speed.
+25%
78.8 %
SC Mixed
Avg. Single Core Mixed Speed
138 Pts Faster single-core speed.
+28%
108 Pts
QC Mixed
Avg. Quad Core Mixed Speed
485 Pts Faster quad-core speed.
+19%
409 Pts
MC Mixed
Avg. Multi Core Mixed Speed
735 Pts Much faster multi-core speed.
+75%
420 Pts
SC Mixed
OC Single Core Mixed Speed
154 Pts Faster OC single-core speed.
+27%
121 Pts
QC Mixed
OC Quad Core Mixed Speed
563 Pts Faster OC quad-core speed.
+24%
453 Pts
MC Mixed
OC Multi Core Mixed Speed
816 Pts Much faster OC multi-core speed.
+79%
457 Pts
Market Share
Based on 7,461,238 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.7 % Hugely higher market share.
+718%
0.33 %
Value
Value For Money
98.9 % Slightly better value.
+10%
90.1 %
User Rating
UBM User Rating
133 % Much more popular.
+80%
74 %
Price
Price (score)
$290 $204 Cheaper.
+30%
Age
Newest
13 Months Much more recent.
+55%
29 Months
TDP
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
+29%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4.2 GHz Faster base frequency.
+27%
3.3 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+15%
3.9 GHz
SC Int
Single Core Integer Speed
152 Pts Faster single-core int speed.
+30%
117 Pts
SC Float
Single Core Floating Point Speed
157 Pts Faster single-core fp speed.
+27%
124 Pts
QC Int
Quad Core Integer Speed
553 Pts Faster quad-core int speed.
+25%
442 Pts
QC Float
Quad Core Floating Point Speed
578 Pts Faster quad-core fp speed.
+24%
468 Pts
MC Int
Multi Core Integer Speed
753 Pts Much faster multi-core int speed.
+70%
443 Pts
MC Float
Multi Core Floating Point Speed
862 Pts Hugely faster multi-core fp speed.
+84%
469 Pts
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
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $213.00 - $224.00
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
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) February 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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The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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