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Intel
IntelBX80662I56600K
▲ 54263 ▼
  

4 Cores, 8 Threads @2.5 GHz, Haswell.
Release date ≈ Q2 2014.

VS
▲ 7428,977 ▼

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

Effective Speed 
+25%
Real World Speed
Performance profile from 411,780 user samples
Benchmark your CPU here
69,536 User Benchmarks
Best Bench: 70% Base clock 2.5 GHz, turbo 3.25 GHz (avg)
Worst Bench: 31% Base clock 2.5 GHz, turbo 0.6 GHz (avg)
Poor: 31% Great: 70%
SPEED RANK: 639th / 1468
Gaming
Gaming 58%
Gunboat
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 46%
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 		57.9 % 72.4 % Faster effective speed.
+25%
Average Score 
+30%
Memory
Avg. Memory Latency 		70 Pts 83.3 Pts Lower memory latency.
+19%
1-Core
Avg. Single Core Speed 		78.9 Pts 110 Pts Much faster single-core speed.
+39%
2-Core
Avg. Dual Core Speed 		148 Pts 218 Pts Much faster dual-core speed.
+47%
4-Core
Avg. Quad Core Speed 		249 Pts 352 Pts Much faster quad-core speed.
+41%
8-Core
Avg. Octa Core Speed 		365 Pts 373 Pts +2%
Overclocked Score 
+29%
Memory
OC Memory Latency 		84.4 Pts 95.2 Pts Lower OC memory latency.
+13%
1-Core
OC Single Core Speed 		94.1 Pts 136 Pts Much faster OC single-core speed.
+45%
2-Core
OC Dual Core Speed 		183 Pts 269 Pts Much faster OC dual-core speed.
+47%
4-Core
OC Quad Core Speed 		319 Pts 455 Pts Much faster OC quad-core speed.
+43%
8-Core
OC Octa Core Speed 		474 Pts 476 Pts +0%
Value & Sentiment 
+481%
Market Share
Based on 69,048,016 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % 0.41 % Hugely higher market share.
+925%
User Rating
UBM User Rating 		54 % 74 % Much more popular.
+37%
Nice To Haves 
+5%
Age
Newest 		124+ Months 111 Months More recent.
+10%
64-Core
OC Multi Core Speed 		476 Pts 484 Pts +2%
64-Core
Avg. Multi Core Speed 		372 Pts 378 Pts +2%
Specifications 
Launch Date
Launch Date 		Q2'14 Q3'15
Lithography
Lithography 		22 nm 14 nm
Recommended Price
Recommended Customer Price 		$378.00 $242.00 - $243.00
Max Turbo Frequency
Max Turbo Frequency 		3.5 GHz 3.9 GHz
Bus Speed
Bus Speed 		5 GT/s DMI2 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type) 		32 GB 64 GB
Memory Types
Memory Types 		DDR3L 1333/1600 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth 		25.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 4600 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency 		400 MHz 350 MHz
Graphics Output
Graphics Output 		eDP/DP/HDMI/VGA eDP/DP/HDMI/DVI
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.2 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		2 GB 64 GB
Package Size
Package Size 		37.5mm x 32mm x 1.6mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
TSX-NI
Intel® TSX-NI 		No Yes
PCI Express Revision
PCI Express Revision 		3 3.0
PCI Express Configurations
PCI Express Configurations ‡ 		1x16, 2x8, 1x8 2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
Conclusion 
Average Bench 57.9%
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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