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Differences What are the advantages of each

Front view of Intel Pentium 4 745

Reasons to consider the
Intel Pentium 4 745

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Significantly higher clock speed 3 GHz vs 1.8 GHz More than 65% higher clock speed
More l2 cache 0.5 MB vs 0 MB Compared to all cpus, 0.5 MB l2 cache is just OK
Much more l2 cache per core 0.5 MB/core vs 0 MB/core Compared to all cpus, 0.5 MB/core l2 cache per core is just OK
Front view of AMD Sempron 3100+

Reasons to consider the
AMD Sempron 3100+

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More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Lower typical power consumption 50.38W vs 66.54W Around 25% lower typical power consumption
Newer Jul, 2004 vs Apr, 2003 Release date over 1 years later
Lower annual home energy cost 14.94 $/year vs 19.73 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 54.31 $/year vs 71.74 $/year Around 25% lower annual commercial energy cost

Features Key features of the Pentium 4 745  vs Sempron 3100+ 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Pentium 4 745  vs
Sempron 3100+ 
Clock speed 3 GHz 1.8 GHz
Cores Single core Single core
Socket type
478
754

features

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

power consumption

TDP 81.9W 62W
Annual home energy cost 19.73 $/year 14.94 $/year
Annual commercial energy cost 71.74 $/year 54.31 $/year
Typical power consumption 66.54W 50.38W

details

Pentium 4 745  vs
Sempron 3100+ 
Architecture x86 x86-64
Threads 2 1
L2 cache 0.5 MB 0 MB
L2 cache per core 0.5 MB/core 0 MB/core
Manufacture process 130 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 70°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 200 MHz
Intel Pentium 4 745
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AMD Sempron 3100+
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