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Differences What are the advantages of each

Front view of Intel Pentium G4400

Reasons to consider the
Intel Pentium G4400

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Much newer manufacturing process 14 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Higher clock speed 3.3 GHz vs 3.1 GHz More than 5% higher clock speed
Much more l3 cache per core 1.5 MB/core vs 0 MB/core Compared to all cpus, 1.5 MB/core l3 cache per core is just OK
More l3 cache 3 MB vs 0 MB Compared to all cpus, 3 MB l3 cache is just OK
Front view of AMD Athlon II X2 255e

Reasons to consider the
AMD Athlon II X2 255e

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Lower typical power consumption 36.56W vs 43.88W More than 15% lower typical power consumption
Lower annual commercial energy cost 39.42 $/year vs 47.3 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 10.84 $/year vs 13.01 $/year More than 15% lower annual home energy cost

Features Key features of the Pentium G4400  vs Athlon II X2 255e 

clock speed

L3 cache

Specifications Full list of technical specs

summary

Pentium G4400  vs
Athlon II X2 255e 
Clock speed 3.3 GHz 3.1 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

details

Pentium G4400  vs
Athlon II X2 255e 
Threads 2 2
L3 cache 3 MB 0 MB
L3 cache per core 1.5 MB/core 0 MB/core
Manufacture process 14 nm 45 nm
Max CPUs 1 1

power consumption

TDP 54W 45W
Annual home energy cost 13.01 $/year 10.84 $/year
Annual commercial energy cost 47.3 $/year 39.42 $/year
Typical power consumption 43.88W 36.56W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Intel Pentium G4400
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AMD Athlon II X2 255e
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