CPUBoss Review Our evaluation of 6600K vs 2400 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

8.1

CPUBoss Score

Combination of all six facets

Winner
Intel Core i5 6600K 

CPUBoss recommends the Intel Core i5 6600K  based on its performance and single-core performance.

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VS

Intel Core i5 6600K

CPUBoss Winner
Front view of Intel Core i5 6600K

Differences What are the advantages of each

Front view of Intel Core i5 6600K

Reasons to consider the
Intel Core i5 6600K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher turbo clock speed 3.9 GHz vs 3.4 GHz Around 15% higher turbo clock speed
Higher clock speed 3.5 GHz vs 3.1 GHz Around 15% higher clock speed
Significantly lower typical power consumption 73.94W vs 93.6W More than 20% lower typical power consumption
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
Significantly better overclocked clock speed (Air) 4.54 GHz vs 3.54 GHz Around 30% better overclocked clock speed (Air)
Better PassMark (Single core) score 2,148 vs 1,742 Around 25% better PassMark (Single core) score
Better PassMark score 8,012 vs 5,901 More than 35% better PassMark score
Better turbo clock speed 1,150 MHz vs 1,100 MHz Around 5% better turbo clock speed
Significantly better overclocked clock speed (Water) 4.57 GHz vs 3.51 GHz More than 30% better overclocked clock speed (Water)
Significantly lower annual home energy cost 21.92 $/year vs 27.75 $/year More than 20% lower annual home energy cost
Significantly lower annual commercial energy cost 79.72 $/year vs 100.92 $/year More than 20% lower annual commercial energy cost
Front view of Intel Core i5 2400

Reasons to consider the
Intel Core i5 2400

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Much better performance per dollar 4.58 pt/$ vs 0.89 pt/$ More than 5x better performance per dollar
Much higher GPU clock speed 850 MHz vs 350 MHz Around 2.5x higher GPU clock speed
Much better performance per watt 8.14 pt/W vs 2.45 pt/W More than 3.2x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Higher Maximum operating temperature 72.6 °C vs 64 °C Around 15% higher Maximum operating temperature

Benchmarks Real world tests of Core i5 6600K vs 2400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 6600K
209.7 MB/s
Core i5 2400
2,260,000 MB/s

Cinebench R10 32-Bit

Core i5 6600K
29,116
Core i5 2400
19,179

Cinebench R10 32-Bit (Single Core)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 6600K  vs
2400 
Clock speed 3.5 GHz 3.1 GHz
Turbo clock speed 3.9 GHz 3.4 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 91W 95W
Annual home energy cost 21.92 $/year 27.75 $/year
Annual commercial energy cost 79.72 $/year 100.92 $/year
Performance per watt 2.45 pt/W 8.14 pt/W
Typical power consumption 73.94W 93.6W

bus

Architecture FSB DMI
Number of links 0 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Core i5 6600K  vs
2400 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 6 MB 6 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 14 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 72.6°C

overclocking

Overclocked clock speed 4.54 GHz 3.54 GHz
Overclocked clock speed (Water) 4.57 GHz 3.51 GHz
Overclocked clock speed (Air) 4.54 GHz 3.54 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 2000
Number of displays supported 3 2
GPU clock speed 350 MHz 850 MHz
Turbo clock speed 1,150 MHz 1,100 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 i5 6600K
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Intel Core i5 2400
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