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IntelBX80677I57400
IntelBX80662I56600K
▲ 5412,812 ▼

4 Cores, 4 Threads @3.0GHz, Kaby Lake.
Release date: Q1 2017.

VS
▲ 7428,977 ▼

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

Effective Speed 
+14%
Real World Speed
Performance profile from 576,510 user samples
Benchmark your CPU here
234,266 User Benchmarks
Best Bench: 73% Base clock 3 GHz, turbo 3.3 GHz (avg)
Worst Bench: 43% Base clock 3 GHz, turbo 3.3 GHz (avg)
Poor: 43% Great: 73%
SPEED RANK: 548th / 1468
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 70%
Battle cruiser
Workstation
Workstation 47%
Yacht
342,244 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 57% Great: 85%
SPEED RANK: 375th / 1468
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed 		63.5 % 72.4 % Faster effective speed.
+14%
Average Score 
+19%
Memory
Avg. Memory Latency 		77.6 Pts 83.3 Pts Slightly lower memory latency.
+7%
1-Core
Avg. Single Core Speed 		92.1 Pts 110 Pts Faster single-core speed.
+19%
2-Core
Avg. Dual Core Speed 		180 Pts 218 Pts Faster dual-core speed.
+21%
4-Core
Avg. Quad Core Speed 		284 Pts 352 Pts Faster quad-core speed.
+24%
8-Core
Avg. Octa Core Speed 		303 Pts 373 Pts Faster octa-core speed.
+23%
Overclocked Score 
+26%
Memory
OC Memory Latency 		90.4 Pts 95.2 Pts Slightly lower OC memory latency.
+5%
1-Core
OC Single Core Speed 		102 Pts 136 Pts Much faster OC single-core speed.
+33%
2-Core
OC Dual Core Speed 		203 Pts 269 Pts Much faster OC dual-core speed.
+33%
4-Core
OC Quad Core Speed 		355 Pts 455 Pts Faster OC quad-core speed.
+28%
8-Core
OC Octa Core Speed 		363 Pts 476 Pts Much faster OC octa-core speed.
+31%
Value & Sentiment 
+8%
Market Share
Based on 69,038,507 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.55 % Higher market share.
+25% 		0.44 %
Value
Value For Money 		85.3 % 98.7 % Better value.
+16%
User Rating
UBM User Rating 		54 % 74 % Much more popular.
+37%
Price
Price (score) 		$95 $90 Slightly cheaper.
+5%
Nice To Haves 
+4%
Age
Newest 		94 Months More recent.
+15% 		111 Months
TDP
Thermal Design Power (TDP) 		65 Watts More energy efficient.
+29% 		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 GHz 3.5 GHz Faster base frequency.
+17%
Turbo Clock
Turbo Clock Speed 		3.5 GHz 3.9 GHz Faster turbo frequency.
+11%
64-Core
OC Multi Core Speed 		368 Pts 484 Pts Much faster OC 64-core speed.
+32%
64-Core
Avg. Multi Core Speed 		307 Pts 378 Pts Faster 64-core speed.
+23%
Specifications 
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
Recommended Price
Recommended Customer Price 		$182.00 $242.00 - $243.00
Max Turbo Frequency
Max Turbo Frequency 		3.50 GHz 3.9 GHz
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
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.00 GHz 1.15 GHz

More specs » More specs »
Conclusion 
Average Bench 63.5%
Average Bench 72.4%

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]

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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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