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Differences What are the advantages of each

Front view of Intel Pentium 4 520521

Reasons to consider the
Intel Pentium 4 520521

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Much higher clock speed 2.8 GHz vs 2.2 GHz More than 25% higher clock speed
More threads 2 vs 1 Twice as many threads
Front view of AMD Sempron 1250

Reasons to consider the
AMD Sempron 1250

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Much newer manufacturing process 65 nm vs 90 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
Much lower typical power consumption 36.56W vs 72.31W Around 50% lower typical power consumption
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Much higher Maximum operating temperature 75 °C vs 69.1 °C Around 10% 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

Features Key features of the Pentium 4 520521  vs Sempron 1250 

clock speed

Sempron 1250
2.2 GHz

L2 cache

Specifications Full list of technical specs

summary

Pentium 4 520521  vs
Sempron 1250 
Clock speed 2.8 GHz 2.2 GHz
Cores Single core Single core
Socket type
478
AM2

features

Has a NX bit No Yes
Has virtualization support No No
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!

power consumption

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

details

Pentium 4 520521  vs
Sempron 1250 
Architecture x86 x86-64
Threads 2 1
L2 cache 1 MB 1 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 69.1°C Unknown - 75°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

bus

Clock speed 800 MHz 333 MHz
Intel Pentium 4 520521
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AMD Sempron 1250
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