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Differences What are the advantages of each

Front view of Intel Pentium G2020

Reasons to consider the
Intel Pentium G2020

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Much higher clock speed 2.9 GHz vs 0.6 GHz More than 4.8x higher clock speed
Much newer manufacturing process 22 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
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher GPU clock speed 650 MHz vs 320 MHz More than 2x higher GPU clock speed
Much better overclocked clock speed (Air) 3.03 GHz vs 0.6 GHz More than 5x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.1 GHz vs 0.6 GHz Around 5.2x better overclocked clock speed (Water)
Newer Jan, 2013 vs Sep, 2010 Release date over 2 years later
More cores 2 vs 1 Twice as many cores; run more applications at once
Front view of Intel Atom E620

Reasons to consider the
Intel Atom E620

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Much lower typical power consumption 2.68W vs 44.69W 16.7x lower typical power consumption
Much lower annual home energy cost 0.79 $/year vs 13.25 $/year 16.7x lower annual home energy cost
Much lower annual commercial energy cost 2.89 $/year vs 48.18 $/year 16.7x lower annual commercial energy cost

Features Key features of the Pentium G2020  vs Atom E620 

clock speed

Pentium G2020
2.9 GHz
Atom E620
0.6 GHz

L2 cache

Atom E620
0.5 MB

gpu clock speed

Pentium G2020
650 MHz
Atom E620
320 MHz

overclocked clock speed (air)

Pentium G2020
3.03 GHz
Atom E620
0.6 GHz

overclocked clock speed (water)

Pentium G2020
3.1 GHz
Atom E620
0.6 GHz

TDP

Specifications Full list of technical specs

summary

Pentium G2020  vs
Atom E620 
Clock speed 2.9 GHz 0.6 GHz
Cores Dual core Single core

features

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

power consumption

TDP 55W 3.3W
Annual home energy cost 13.25 $/year 0.79 $/year
Annual commercial energy cost 48.18 $/year 2.89 $/year
Typical power consumption 44.69W 2.68W

bus

Architecture DMI FSB
Number of links 1 1

details

Pentium G2020  vs
Atom E620 
Architecture x86-64 x86
Threads 2 2
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 1
Clock multiplier 29 6

overclocking

Overclocked clock speed 3.03 GHz 0.6 GHz
Overclocked clock speed (Water) 3.1 GHz 0.6 GHz
Overclocked clock speed (Air) 3.03 GHz 0.6 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Integrated
GPU clock speed 650 MHz 320 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3
DDR2-800
DDR2
Channels Dual Channel Single Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 6,400 MB/s
Maximum memory size 32,768 MB 2,048 MB
Intel Pentium G2020
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Intel Atom E620
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