IntelBX80677I77700K
IntelBX80677I57600K

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

4 Cores, 4 Threads
@3.8GHz Kaby Lake (2017)

Real World Speed
Performance profile from 124,460 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
33,516 User Benchmarks
Best Bench: 113% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 77% Base clock 3.8 GHz, turbo 4.45 GHz (avg)
Poor: 77% Great: 113%
SPEED RANK: 20th / 980
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed
98.4 % +3% 95.9 % -3%
SC Mixed
Avg. Single Core Mixed Speed
138 Pts +5% 132 Pts -5%
QC Mixed
Avg. Quad Core Mixed Speed
483 Pts -3% 497 Pts +3%
MC Mixed
Avg. Multi Core Mixed Speed
731 Pts Much faster multi-core speed.
+44%
509 Pts -44%
SC Mixed
OC Single Core Mixed Speed
154 Pts +1% 152 Pts -1%
QC Mixed
OC Quad Core Mixed Speed
562 Pts -6% 596 Pts Slightly faster OC quad-core speed.
+6%
MC Mixed
OC Multi Core Mixed Speed
819 Pts Much faster OC multi-core speed.
+37%
599 Pts -37%
Market Share
Based on 5,968,318 CPUs tested.
Market Share
Market Share (trailing 30 days)
3.53 % Hugely higher market share.
+180%
1.26 % -180%
Value
Value For Money
99.9 % -15% 115 % Slightly better value.
+15%
User Rating
UBM User Rating
163 % More popular.
+29%
126 % -29%
Price
Price (score)
$280 -36% $180 Much cheaper.
+36%
Age
Newest
10 Months 0% 10 Months 0%
TDP
Thermal Design Power (TDP)
91 Watts 0% 91 Watts 0%
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 Slightly faster base frequency.
+11%
3.8 GHz -11%
Turbo Clock
Turbo Clock Speed
4.5 GHz Slightly faster turbo frequency.
+7%
4.2 GHz -7%
SC Int
Single Core Integer Speed
151 Pts +2% 148 Pts -2%
SC Float
Single Core Floating Point Speed
158 Pts +1% 157 Pts -1%
QC Int
Quad Core Integer Speed
547 Pts -5% 574 Pts +5%
QC Float
Quad Core Floating Point Speed
578 Pts -7% 617 Pts Slightly faster quad-core fp speed.
+7%
MC Int
Multi Core Integer Speed
757 Pts Much faster multi-core int speed.
+31%
580 Pts -31%
MC Float
Multi Core Floating Point Speed
864 Pts Much faster multi-core fp speed.
+39%
623 Pts -39%
Series
CPU Architecture
Kaby Lake (2017) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 630 HD 630
Cache
Cache
8 MB 6 MB
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $242.00 - $243.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)

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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The i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

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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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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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