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Differences What are the advantages of each

Front view of Intel Atom E620T

Reasons to consider the
Intel Atom E620T

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CPUBoss is not aware of any important advantages of the Intel Atom E620T vs the AMD A4 Micro 6400T.

Front view of AMD A4 Micro 6400T

Reasons to consider the
AMD A4 Micro 6400T

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 28 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Higher clock speed 1 GHz vs 0.6 GHz More than 65% higher clock speed
More cores 4 vs 1 3 more cores; run more applications at once
Significantly better overclocked clock speed (Air) 1.6 GHz vs 0.6 GHz Around 2.8x better overclocked clock speed (Air)
Newer Apr, 2014 vs Sep, 2010 Release date over 3 years later
More threads 4 vs 2 Twice as many threads
Significantly better overclocked clock speed (Water) 1.6 GHz vs 0.6 GHz Around 2.8x better overclocked clock speed (Water)

Features Key features of the Atom E620T  vs A4 Micro 6400T 

clock speed

Atom E620T
0.6 GHz

L2 cache

gpu clock speed

Atom E620T
320 MHz
A4 Micro 6400T
350 MHz

overclocked clock speed (air)

Atom E620T
0.6 GHz
A4 Micro 6400T
1.6 GHz

overclocked clock speed (water)

Atom E620T
0.6 GHz
A4 Micro 6400T
1.6 GHz

TDP

Specifications Full list of technical specs

summary

Atom E620T  vs
A4 Micro 6400T 
Clock speed 0.6 GHz 1 GHz
Cores Single core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
SSE4.2
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 3.3W 4.5W
Annual home energy cost 0.79 $/year 1.08 $/year
Annual commercial energy cost 2.89 $/year 3.94 $/year
Typical power consumption 2.68W 3.66W

details

Atom E620T  vs
A4 Micro 6400T 
Architecture x86 x86-64
Threads 2 4
L2 cache 0.5 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 28 nm
Max CPUs 1 1
Voltage range 0.75 - 0.9V 0.5 - 1.4V

overclocking

Overclocked clock speed 0.6 GHz 1.6 GHz
Overclocked clock speed (Water) 0.6 GHz 1.6 GHz
Overclocked clock speed (Air) 0.6 GHz 1.6 GHz

integrated graphics

GPU GPU GPU
Label Integrated Radeon R3 series
GPU clock speed 320 MHz 350 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR2-800
DDR3L-1333
DDR2
Intel Atom E620T
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AMD A4 Micro 6400T
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