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Intel
IntelBX80662I56600K
▲ 5151 ▼
  

4 Cores, 8 Threads @2.26 GHz, Nehalem EP.
Release date ≤ Q4 2013.

VS
▲ 7428,951 ▼

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

Effective Speed 
+22%
Real World Speed
Performance profile from 343,641 user samples
Benchmark your CPU here
1,397 User Benchmarks
Best Bench: 65% Base clock 2.25 GHz, turbo 2.4 GHz (avg)
Worst Bench: 48% Base clock 2.25 GHz, turbo 2.35 GHz (avg)
Poor: 48% Great: 65%
SPEED RANK: 607th / 1456
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 62%
Destroyer
Workstation
Workstation 43%
Speed boat
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: 363rd / 1456
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed 		59.1 % 72.4 % Faster effective speed.
+22%
Average Score 
+62%
Memory
Avg. Memory Latency 		82.7 Pts 83.3 Pts +1%
1-Core
Avg. Single Core Speed 		57.8 Pts 110 Pts Hugely faster single-core speed.
+90%
2-Core
Avg. Dual Core Speed 		112 Pts 218 Pts Hugely faster dual-core speed.
+95%
4-Core
Avg. Quad Core Speed 		200 Pts 352 Pts Much faster quad-core speed.
+76%
8-Core
Avg. Octa Core Speed 		254 Pts 373 Pts Much faster octa-core speed.
+47%
Overclocked Score 
+76%
Memory
OC Memory Latency 		91.1 Pts 95.2 Pts +5%
1-Core
OC Single Core Speed 		63.5 Pts 136 Pts Hugely faster OC single-core speed.
+114%
2-Core
OC Dual Core Speed 		126 Pts 269 Pts Hugely faster OC dual-core speed.
+113%
4-Core
OC Quad Core Speed 		241 Pts 455 Pts Hugely faster OC quad-core speed.
+89%
8-Core
OC Octa Core Speed 		304 Pts 476 Pts Much faster OC octa-core speed.
+57%
Value & Sentiment 
+∞%
Market Share
Based on 68,152,770 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.48 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		51 % 74 % Much more popular.
+45%
Nice To Haves 
+40%
Age
Newest 		126+ Months 107 Months More recent.
+15%
64-Core
OC Multi Core Speed 		305 Pts 484 Pts Much faster OC 64-core speed.
+59%
64-Core
Avg. Multi Core Speed 		258 Pts 378 Pts Much faster 64-core speed.
+47%
Specifications 
Launch Date
Launch Date 		Q1'09 Q3'15
Cache
Cache 		8 MB SmartCache 6 MB SmartCache
Lithography
Lithography 		45 nm 14 nm
Recommended Price
Recommended Customer Price 		N/A $242.00 - $243.00
Max Turbo Frequency
Max Turbo Frequency 		2.53 GHz 3.9 GHz
Bus Speed
Bus Speed 		5.86 GT/s QPI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type) 		144 GB 64 GB
Memory Types
Memory Types 		DDR3 800/1066 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels 		3 2
Memory Bandwidth
Max Memory Bandwidth 		25.6 GB/s 34.1 GB/s
ECC Memory Supported
ECC Memory Supported ‡ 		Yes No
Package Size
Package Size 		42.5mm x 45mm 37.5mm x 37.5mm
Max CPU Configuration
Max CPU Configuration 		2 1
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		1.0 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No

More specs » More specs »
Conclusion 
Average Bench 59.1%
Average Bench 72.4%
ADVERTISEMENT

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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