CPUBoss Review Our evaluation of 2700K vs 6600 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Core i7 2700K

Reasons to consider the
Intel Core i7 2700K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher GPU clock speed 850 MHz vs 350 MHz Around 2.5x higher GPU clock speed
Much better performance per dollar 2.51 pt/$ vs 1.11 pt/$ More than 2.2x better performance per dollar
Significantly better turbo clock speed 1,350 MHz vs 1,150 MHz More than 15% better turbo clock speed
Higher clock speed 3.5 GHz vs 3.3 GHz More than 5% higher clock speed
Much better performance per watt 9.26 pt/W vs 3.94 pt/W More than 2.2x better performance per watt
Much better overclocked clock speed (Air) 5.11 GHz vs 3.75 GHz More than 35% better overclocked clock speed (Air)
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 8 vs 4 Twice as many threads
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Slightly better PassMark score 8,930 vs 7,834 Around 15% better PassMark score
Significantly better overclocked clock speed (Water) 4.78 GHz vs 3.87 GHz Around 25% better overclocked clock speed (Water)
Front view of Intel Core i5 6600

Reasons to consider the
Intel Core i5 6600

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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 better CompuBench 1.5 ocean surface simulation score 267.71 fps vs 74.43 fps More than 3.5x better CompuBench 1.5 ocean surface simulation score
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
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 Oct, 2011 Release date over 3 years later
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Core i7 2700K vs i5 6600

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Core i7 2700K
74.43 fps
Core i5 6600
267.71 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 2700K
12,182
Core i5 6600
12,206

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 2700K
2,600,000 MB/s
Core i5 6600
5,090 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 2700K  vs
i5 6600 
Clock speed 3.5 GHz 3.3 GHz
Turbo clock speed 3.9 GHz 3.9 GHz
Cores Quad core Quad core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
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 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 9.26 pt/W 3.94 pt/W
Typical power consumption 77.19W 52.81W

bus

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

details

Core i7 2700K  vs
i5 6600 
Architecture x86-64 x86-64
Threads 8 4
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 1 1
Operating temperature Unknown - 72.6°C Unknown - 71°C

overclocking

Overclocked clock speed 5.11 GHz 3.75 GHz
Overclocked clock speed (Water) 4.78 GHz 3.87 GHz
Overclocked clock speed (Air) 5.11 GHz 3.75 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 3000 Intel® HD Graphics 530
Number of displays supported 2 3
GPU clock speed 850 MHz 350 MHz
Turbo clock speed 1,350 MHz 1,150 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 21,333.32 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 65,536 MB
Intel Core i7 2700K
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Intel Core i5 6600
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