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Differences What are the advantages of each

Front view of AMD Sempron 145

Reasons to consider the
AMD Sempron 145

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Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 2.8 GHz vs 2.2 GHz More than 25% higher clock speed
Much lower typical power consumption 36.56W vs 72.31W Around 50% lower typical power consumption
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much higher Maximum operating temperature 63 °C vs 55 °C Around 15% higher Maximum operating temperature
Much lower annual commercial energy cost 39.42 $/year vs 77.96 $/year Around 50% lower annual commercial energy cost
Much lower annual home energy cost 10.84 $/year vs 21.44 $/year Around 50% lower annual home energy cost
Front view of AMD Athlon X2 4400+

Reasons to consider the
AMD Athlon X2 4400+

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Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads

Features Key features of the Sempron 145  vs Athlon X2 4400+ 

clock speed

Sempron 145
2.8 GHz
Athlon X2 4400+
2.2 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Sempron 145  vs
Athlon X2 4400+ 
Clock speed 2.8 GHz 2.2 GHz
Cores Single core Dual core
Socket type
AM3
AM2
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 89W
Annual home energy cost 10.84 $/year 21.44 $/year
Annual commercial energy cost 39.42 $/year 77.96 $/year
Typical power consumption 36.56W 72.31W

details

Sempron 145  vs
Athlon X2 4400+ 
Architecture x86-64 x86-64
Threads 1 2
L2 cache 1 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 0 MB 0 MB
L3 cache per core 0 MB/core 0 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 63°C Unknown - 55°C

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
AMD Sempron 145
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AMD Athlon X2 4400+
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