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Intel Core i7 6700

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Front view of Intel Core i7 6700

Differences What are the advantages of each

Front view of Intel Core i7 6700

Reasons to consider the
Intel Core i7 6700

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Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 52.81W vs 114.2W 2.2x lower typical power consumption
Slightly higher turbo clock speed 4 GHz vs 3.8 GHz More than 5% higher turbo clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More number of displays supported 3 vs 2 1 more number of displays supported
Newer Jul, 2015 vs Jan, 2011 Release date over 4 years later
Much lower annual home energy cost 15.66 $/year vs 41.8 $/year 2.7x lower annual home energy cost
Better PassMark (Single core) score 2,159 vs 1,920 More than 10% better PassMark (Single core) score
Better PassMark score 10,038 vs 8,494 Around 20% better PassMark score
Much lower annual commercial energy cost 56.94 $/year vs 111.78 $/year Around 50% lower annual commercial energy cost
Front view of Intel Core i7 2600K

Reasons to consider the
Intel Core i7 2600K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better performance per dollar 2.92 pt/$ vs 0.87 pt/$ More than 3.2x better performance per dollar
Much higher GPU clock speed 850 MHz vs 350 MHz Around 2.5x higher GPU clock speed
Significantly better turbo clock speed 1,350 MHz vs 1,150 MHz More than 15% better turbo clock speed
Significantly better CompuBench 1.5 ocean surface simulation score 77.01 fps vs -1 fps More than 7800% better CompuBench 1.5 ocean surface simulation score
Significantly better overclocked clock speed (Air) 5.05 GHz vs 3.98 GHz More than 25% better overclocked clock speed (Air)
Significantly better performance per watt 7.53 pt/W vs 4.09 pt/W Around 85% better performance per watt
Better overclocked clock speed (Water) 4.76 GHz vs 4.18 GHz Around 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i7 6700 vs 2600K

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Core i7 6700
-1 fps
Core i7 2600K
77.01 fps

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6700  vs
2600K 
Clock speed 3.4 GHz 3.4 GHz
Turbo clock speed 4 GHz 3.8 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 41.8 $/year
Annual commercial energy cost 56.94 $/year 111.78 $/year
Performance per watt 4.09 pt/W 7.53 pt/W
Typical power consumption 52.81W 114.2W

bus

Architecture FSB DMI
Number of links 1 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Core i7 6700  vs
2600K 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 14 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 71°C Unknown - 72.6°C

overclocking

Overclocked clock speed 3.98 GHz 5.05 GHz
Overclocked clock speed (Water) 4.18 GHz 4.76 GHz
Overclocked clock speed (Air) 3.98 GHz 5.05 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 3000
Number of displays supported 3 2
GPU clock speed 350 MHz 850 MHz
Turbo clock speed 1,150 MHz 1,350 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 65,536 MB 32,768 MB
Intel Core i7 6700
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Intel Core i7 2600K
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