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Differences What are the advantages of each

Front view of Intel Pentium 4 506

Reasons to consider the
Intel Pentium 4 506

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Much more l2 cache 1 MB vs 0.25 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 90 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 2.66 GHz vs 1.75 GHz More than 50% higher clock speed
Much better overclocked clock speed (Air) 3.85 GHz vs 2.21 GHz Around 75% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Much better overclocked clock speed (Water) 2.67 GHz vs 1.4 GHz More than 90% better overclocked clock speed (Water)
Newer Apr, 2005 vs Jul, 2004 Release date 8 months later
Front view of AMD Sempron 2500+

Reasons to consider the
AMD Sempron 2500+

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Significantly lower typical power consumption 47.94W vs 68.25W Around 30% lower typical power consumption
Higher Maximum operating temperature 69 °C vs 67.7 °C Almost the same
Significantly lower annual commercial energy cost 51.68 $/year vs 73.58 $/year Around 30% lower annual commercial energy cost
Significantly lower annual home energy cost 14.21 $/year vs 20.24 $/year Around 30% lower annual home energy cost

Benchmarks Real world tests of Pentium 4 506 vs Sempron 2500+

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium 4 506
95,500 MB/s
Sempron 2500+
38.7 MB/s

Specifications Full list of technical specs

summary

Pentium 4 506  vs
Sempron 2500+ 
Clock speed 2.66 GHz 1.75 GHz
Cores Single core Single core
Socket type
LGA 775
754
462

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!

bus

Clock speed 533 MHz 333 MHz

details

Pentium 4 506  vs
Sempron 2500+ 
Threads 1 1
L2 cache 1 MB 0.25 MB
L2 cache per core 1 MB/core 0.25 MB/core
Manufacture process 90 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 67.7°C Unknown - 69°C

overclocking

Overclocked clock speed 3.85 GHz 2.21 GHz
Overclocked clock speed (Water) 2.67 GHz 1.4 GHz
Overclocked clock speed (Air) 3.85 GHz 2.21 GHz

power consumption

TDP 84W 59W
Annual home energy cost 20.24 $/year 14.21 $/year
Annual commercial energy cost 73.58 $/year 51.68 $/year
Performance per watt 0.93 pt/W 0.41 pt/W
Typical power consumption 68.25W 47.94W
Intel Pentium 4 506
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AMD Sempron 2500+
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