IntelBX80662I56600K
IntelBX80677I57600K

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

4 Cores, 4 Threads @3.8GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 202,290 user samples
135,082 User Benchmarks
Best Bench: 104% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 65% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 65% Great: 104%
SPEED RANK: 44th / 1132
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 52%
Yacht
67,208 User Benchmarks
Best Bench: 109% Base clock 3.8 GHz, turbo 5.1 GHz (avg)
Worst Bench: 74% Base clock 3.8 GHz, turbo 1.25 GHz (avg)
Poor: 74% Great: 109%
SPEED RANK: 31st / 1132
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 56%
Gunboat
Effective Speed
Effective CPU Speed
85.7 % 92.2 % Slightly faster effective speed.
+8%
SC Mixed
Avg. Single Core Mixed Speed
119 Pts 129 Pts Slightly faster single-core speed.
+8%
QC Mixed
Avg. Quad Core Mixed Speed
443 Pts 475 Pts Slightly faster quad-core speed.
+7%
MC Mixed
Avg. Multi Core Mixed Speed
453 Pts 487 Pts Slightly faster multi-core speed.
+8%
SC Mixed
OC Single Core Mixed Speed
141 Pts 149 Pts Slightly faster OC single-core speed.
+6%
QC Mixed
OC Quad Core Mixed Speed
547 Pts 570 Pts +4%
MC Mixed
OC Multi Core Mixed Speed
551 Pts 574 Pts +4%
Market Share
Based on 11,606,492 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.34 % Much higher market share.
+60%
0.84 %
Value
Value For Money
92.4 % 97.5 % Slightly better value.
+6%
User Rating
UBM User Rating
72 % 97 % Much more popular.
+35%
Price
Price (score)
$238 Slightly cheaper.
+5%
$251
Age
Newest
38 Months 21 Months Much more recent.
+45%
TDP
Thermal Design Power (TDP)
91 Watts 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.5 GHz 3.8 GHz Slightly faster base frequency.
+9%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.2 GHz Slightly faster turbo frequency.
+8%
SC Int
Single Core Integer Speed
137 Pts 144 Pts Slightly faster single-core int speed.
+5%
SC Float
Single Core Floating Point Speed
149 Pts 155 Pts +4%
QC Int
Quad Core Integer Speed
524 Pts 541 Pts +3%
QC Float
Quad Core Floating Point Speed
580 Pts 614 Pts Slightly faster quad-core fp speed.
+6%
MC Int
Multi Core Integer Speed
527 Pts 547 Pts +4%
MC Float
Multi Core Floating Point Speed
581 Pts 613 Pts Slightly faster multi-core fp speed.
+6%
Series
CPU Architecture
Skylake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 630
Launch Date
Launch Date
Q3'15 Q1'17
Cache
Cache
6 MB SmartCache 6 MB
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
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

More specs » More specs »
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The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) October 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.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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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.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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.
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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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