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Differences What are the advantages of each

Front view of Intel Pentium 4 551

Reasons to consider the
Intel Pentium 4 551

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Much higher clock speed 3.4 GHz vs 1.8 GHz Around 90% higher clock speed
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 better overclocked clock speed (Air) 4.06 GHz vs 2.41 GHz Around 70% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 3.4 GHz vs 1.83 GHz More than 85% better overclocked clock speed (Water)
Newer Apr, 2005 vs Jul, 2004 Release date 8 months later
Front view of AMD Sempron 2600+

Reasons to consider the
AMD Sempron 2600+

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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 virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Lower typical power consumption 50.38W vs 68.25W More than 25% lower typical power consumption
Much higher Maximum operating temperature 95 °C vs 67.7 °C More than 40% higher Maximum operating temperature
Lower annual home energy cost 14.94 $/year vs 20.24 $/year More than 25% lower annual home energy cost
Lower annual commercial energy cost 54.31 $/year vs 73.58 $/year More than 25% lower annual commercial energy cost

Features Key features of the Pentium 4 551  vs Sempron 2600+ 

clock speed

Pentium 4 551
3.4 GHz
Sempron 2600+
1.8 GHz

L2 cache

overclocked clock speed (air)

Pentium 4 551
4.06 GHz
Sempron 2600+
2.41 GHz

overclocked clock speed (water)

Pentium 4 551
3.4 GHz
Sempron 2600+
1.83 GHz

Specifications Full list of technical specs

summary

Pentium 4 551  vs
Sempron 2600+ 
Clock speed 3.4 GHz 1.8 GHz
Cores Single core Single core
Socket type
LGA 775
754
462

features

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

bus

Clock speed 800 MHz 200 MHz

details

Pentium 4 551  vs
Sempron 2600+ 
Threads 2 1
L2 cache 1 MB 0.5 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 90 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 67.7°C Unknown - 95°C

overclocking

Overclock popularity 1 0
Overclocked clock speed 4.06 GHz 2.41 GHz
Overclocked clock speed (Water) 3.4 GHz 1.83 GHz
PassMark (Overclocked) 924.9 57.1
Overclocked clock speed (Air) 4.06 GHz 2.41 GHz

power consumption

TDP 84W 62W
Annual home energy cost 20.24 $/year 14.94 $/year
Annual commercial energy cost 73.58 $/year 54.31 $/year
Typical power consumption 68.25W 50.38W
Intel Pentium 4 551
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AMD Sempron 2600+
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