CPUBoss Review Our evaluation of 3470 vs 6400K among desktop 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

Fire Strike

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?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

6.6

CPUBoss Score

Combination of all six facets

Winner
AMD A6 6400K 

CPUBoss recommends the AMD A6 6400K  based on its overclocking.

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VS

Differences What are the advantages of each

Front view of Intel Core i5 3470

Reasons to consider the
Intel Core i5 3470

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Much more l3 cache 6 MB vs None Compared to all cpus, 6 MB l3 cache is just OK
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Front view of AMD A6 6400K

Reasons to consider the
AMD A6 6400K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.9 GHz vs 3.2 GHz More than 20% higher clock speed
Much better overclocked clock speed (Air) 4.76 GHz vs 3.67 GHz Around 30% better overclocked clock speed (Air)
Much lower typical power consumption 52.81W vs 86.05W Around 40% lower typical power consumption
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Higher Maximum operating temperature 70 °C vs 67.4 °C Around 5% higher Maximum operating temperature
Much lower annual home energy cost 15.66 $/year vs 31.22 $/year Around 50% lower annual home energy cost
Much better overclocked clock speed (Water) 5.16 GHz vs 4.09 GHz More than 25% better overclocked clock speed (Water)
Much lower annual commercial energy cost 56.94 $/year vs 84.62 $/year Around 35% lower annual commercial energy cost
Newer Jun, 2013 vs Jun, 2012 Release date a year later

Benchmarks Real world tests of Core i5 3470 vs A6 6400K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i5 3470
3.08 mHash/s
A6 6400K
34.13 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i5 3470
0.67 fps
A6 6400K
0.4 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i5 3470
2,580
A6 6400K
2,364

Sky Diver Data courtesy FutureMark

Core i5 3470
1,055
A6 6400K
2,157

Cloud Gate Data courtesy FutureMark

Core i5 3470
3,118
A6 6400K
3,375

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 3470
9,436
A6 6400K
3,328

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 3470
2,983
A6 6400K
2,108

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 3470
2,470,000 MB/s
A6 6400K
2,380,000 MB/s

Specifications Full list of technical specs

summary

Core i5 3470  vs
A6 6400K 
Clock speed 3.2 GHz 3.9 GHz
Turbo clock speed 3.6 GHz 4.1 GHz
Cores Quad core Dual core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
ABM
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 77W 65W
Annual home energy cost 31.22 $/year 15.66 $/year
Annual commercial energy cost 84.62 $/year 56.94 $/year
Performance per watt 4.41 pt/W 7.25 pt/W
Typical power consumption 86.05W 52.81W

details

Core i5 3470  vs
A6 6400K 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 6 MB None
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 67.4°C Unknown - 70°C

overclocking

Overclocked clock speed 3.67 GHz 4.76 GHz
Overclocked clock speed (Water) 4.09 GHz 5.16 GHz
Overclocked clock speed (Air) 3.67 GHz 4.76 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 2500 Radeon™ HD 8470D
Latest DirectX 11.0 11.0
GPU clock speed 650 MHz 800 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3
Intel Core i5 3470
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AMD A6 6400K
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