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Differences What are the advantages of each

Front view of Intel Pentium 4 520

Reasons to consider the
Intel Pentium 4 520

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Much newer manufacturing process 90 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.8 GHz vs 2.2 GHz More than 25% higher clock speed
Front view of AMD Opteron 148

Reasons to consider the
AMD Opteron 148

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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
Newer May, 2004 vs Nov, 2000 Release date over 3 years later
Slightly higher Maximum operating temperature 71 °C vs 67.7 °C Around 5% higher Maximum operating temperature

Benchmarks Real world tests of Pentium 4 520 vs Opteron 148

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Specifications Full list of technical specs

summary

Pentium 4 520  vs
Opteron 148 
Clock speed 2.8 GHz 2.2 GHz
Cores Single core Single core
Socket type
LGA 775
939
940

features

Supports dynamic frequency scaling No Yes

power consumption

TDP 84W 85.3W
Annual home energy cost 20.24 $/year 20.55 $/year
Annual commercial energy cost 73.58 $/year 74.72 $/year
Typical power consumption 68.25W 69.31W

details

Pentium 4 520  vs
Opteron 148 
Threads 1 1
L2 cache 1 MB 1 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 130 nm
Max CPUs 1 1
Voltage range 1.25 - 1.4V 1.3 - UnknownV
Operating temperature Unknown - 67.7°C 0 - 71°C
Intel Pentium 4 520
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AMD Opteron 148
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