IntelBX80677I57600K
IntelBX80662I56600K

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

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

Real World Speed
Performance profile from 219,325 user samples
72,451 User Benchmarks
Best Bench: 110% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 73% Base clock 3.8 GHz, turbo 1 GHz (avg)
Poor: 73% Great: 110%
SPEED RANK: 40th / 1144
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 55%
Gunboat
146,874 User Benchmarks
Best Bench: 103% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 63% Base clock 3.5 GHz, turbo 1.1 GHz (avg)
Poor: 63% Great: 103%
SPEED RANK: 57th / 1144
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 51%
Yacht
Effective Speed
Effective CPU Speed
91 % Slightly faster effective speed.
+8%
84.2 %
SC Mixed
Avg. Single Core Mixed Speed
128 Pts Slightly faster single-core speed.
+8%
118 Pts
QC Mixed
Avg. Quad Core Mixed Speed
468 Pts Slightly faster quad-core speed.
+8%
433 Pts
MC Mixed
Avg. Multi Core Mixed Speed
478 Pts Slightly faster multi-core speed.
+8%
444 Pts
SC Mixed
OC Single Core Mixed Speed
149 Pts Slightly faster OC single-core speed.
+6%
141 Pts
QC Mixed
OC Quad Core Mixed Speed
571 Pts Slightly faster OC quad-core speed.
+6%
539 Pts
MC Mixed
OC Multi Core Mixed Speed
578 Pts Slightly faster OC multi-core speed.
+5%
548 Pts
Market Share
Based on 12,921,817 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.8 % 1.28 % Much higher market share.
+60%
Value
Value For Money
96.3 % +5% 92 %
User Rating
UBM User Rating
98 % More popular.
+21%
81 %
Price
Price (score)
$251 $231 Slightly cheaper.
+8%
Age
Newest
23 Months Much more recent.
+42%
40 Months
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
3.8 GHz Slightly faster base frequency.
+9%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+8%
3.9 GHz
SC Int
Single Core Integer Speed
144 Pts Slightly faster single-core int speed.
+6%
136 Pts
SC Float
Single Core Floating Point Speed
157 Pts Slightly faster single-core fp speed.
+5%
149 Pts
QC Int
Quad Core Integer Speed
541 Pts +5% 516 Pts
QC Float
Quad Core Floating Point Speed
615 Pts Slightly faster quad-core fp speed.
+6%
578 Pts
MC Int
Multi Core Integer Speed
549 Pts Slightly faster multi-core int speed.
+5%
521 Pts
MC Float
Multi Core Floating Point Speed
615 Pts Slightly faster multi-core fp speed.
+6%
581 Pts
Graphics
Integrated Graphics
HD 630 HD 530
Series
CPU Architecture
Kaby Lake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Series
CPU Architecture
Kaby Lake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 630 HD 530
Launch Date
Launch Date
Q1'17 Q3'15
Cache
Cache
6 MB 6 MB SmartCache
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
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

More specs » More specs »
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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]

MORE DETAILS

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

Processor Rankings (Price vs Performance) December 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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  • - RAM tests include: single/multi core bandwidth and latency.
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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $330Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $229Samsung 850 Evo 500GB $100
Intel Core i5-8600K $243Nvidia GTX 1080-Ti $770Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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