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IntelBX80662I56600K
IntelBX80646I34130
▲ 7428,937 ▼

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

VS
▲ 543,257 ▼

2 Cores, 4 Threads @3.4GHz, Haswell.
Release date: Q3 2013.

Effective Speed 
+38%
Real World Speed
Performance profile from 391,753 user samples
Benchmark your CPU here
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: 355th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
49,509 User Benchmarks
Best Bench: 63% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Worst Bench: 32% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Poor: 32% Great: 63%
SPEED RANK: 730th / 1442
Gaming
Gaming 52%
Yacht
Desktop
Desktop 60%
Gunboat
Workstation
Workstation 38%
Jet ski
Effective Speed
Effective CPU Speed 		72.4 % Much faster effective speed.
+38% 		52.3 %
Average Score 
+54%
Memory
Avg. Memory Latency 		83.3 Pts Lower memory latency.
+18% 		70.8 Pts
1-Core
Avg. Single Core Speed 		110 Pts Much faster single-core speed.
+39% 		79.2 Pts
2-Core
Avg. Dual Core Speed 		218 Pts Much faster dual-core speed.
+56% 		140 Pts
4-Core
Avg. Quad Core Speed 		352 Pts Much faster quad-core speed.
+80% 		196 Pts
8-Core
Avg. Octa Core Speed 		373 Pts Hugely faster octa-core speed.
+80% 		207 Pts
Overclocked Score 
+59%
Memory
OC Memory Latency 		95.2 Pts +4% 91.2 Pts
1-Core
OC Single Core Speed 		136 Pts Much faster OC single-core speed.
+44% 		94.3 Pts
2-Core
OC Dual Core Speed 		269 Pts Much faster OC dual-core speed.
+61% 		167 Pts
4-Core
OC Quad Core Speed 		455 Pts Hugely faster OC quad-core speed.
+89% 		241 Pts
8-Core
OC Octa Core Speed 		476 Pts Hugely faster OC octa-core speed.
+96% 		243 Pts
Value & Sentiment 
+144%
Market Share
Based on 67,699,322 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.47 % Hugely higher market share.
+571% 		0.07 %
Value
Value For Money 		102 % Better value.
+16% 		87.4 %
User Rating
UBM User Rating 		74 % Much more popular.
+37% 		54 %
Price
Price (score) 		$81 $43 Much cheaper.
+47%
Nice To Haves 
+35%
Age
Newest 		104 Months More recent.
+18% 		127 Months
TDP
Thermal Design Power (TDP) 		91 Watts 54 Watts Much more energy efficient.
+41%
Cores
CPU Processing Cores 		4 cores Hugely higher core count.
+100% 		2 cores
Threads
CPU Processing Threads 		4 threads 4 threads
Lithography
Manufacturing process 		14 nm Much newer manufacturing.
+36% 		22 nm
Base Clock
Base Clock Speed 		3.5 GHz +3% 3.4 GHz
Turbo Clock
Turbo Clock Speed 		3.9 GHz Faster turbo frequency.
+15% 		3.4 GHz
64-Core
OC Multi Core Speed 		484 Pts Hugely faster OC 64-core speed.
+98% 		244 Pts
64-Core
Avg. Multi Core Speed 		378 Pts Hugely faster 64-core speed.
+81% 		209 Pts
Specifications 
Series
CPU Architecture 		Skylake Haswell
Socket
Motherboard Socket 		FCLGA1151 FCLGA1150
Graphics
Integrated Graphics 		HD 530 HD 4400
Launch Date
Launch Date 		Q3'15 Q3'13
Cache
Cache 		6 MB SmartCache 3 MB SmartCache
Lithography
Lithography 		14 nm 22 nm
Recommended Price
Recommended Customer Price 		$242.00 - $243.00 $117.00
Bus Speed
Bus Speed 		8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015D (130W) PCG 2013C
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth 		34.1 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡ 		No Yes
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 530 Intel® HD graphics 4400
Graphics Output
Graphics Output 		eDP/DP/HDMI/DVI eDP/DP/HDMI/DVI/VGA
Graphics Video Max Memory
Graphics Video Max Memory 		64 GB 2 GB
Graphics and IMC Lithography
Graphics and IMC Lithography 		14 nm 22 nm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		No Yes
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡ 		Yes No
TSX-NI
Intel® TSX-NI 		Yes No
PCI Express Revision
PCI Express Revision 		3.0 Up to 3.0

More specs » More specs »
Conclusion 
Average Bench 72.4%
Average Bench 52.3%
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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

From the point of view of a consumer that typically uses a PC for surfing the web, checking email, listening to music and watching videos, I consider that the Haswell i3 processors currently represent the best value for money. The i3-4130 has a performance profile that is just 7% below the top nine group leader average yet it only costs half as much. Power users that play intensive 3d games or run video editing, graphics design or CAD packages will benefit from more than two cores and will do well to look elsewhere but for regular users overall responsiveness will remain largely unchanged regardless of how much more is spent on the CPU. (My new value pick is the G3420 which supersedes my recommendation of the i3-4130.) [Sep '13 CPUPro]

MORE DETAILS

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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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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