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Differences What are the advantages of each

Front view of Intel Pentium 4 640

Reasons to consider the
Intel Pentium 4 640

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Much higher clock speed 3.2 GHz vs 1.4 GHz More than 2.2x higher clock speed
Much newer manufacturing process 90 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 2 MB/core vs 1 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Air) 3.92 GHz vs 1.4 GHz More than 2.8x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.2 GHz vs 1.4 GHz More than 2.2x better overclocked clock speed (Water)
Newer Jan, 2005 vs Jun, 2003 Release date over 1 years later
Front view of AMD Opteron 140

Reasons to consider the
AMD Opteron 140

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CPUBoss is not aware of any important advantages of the AMD Opteron 140 vs the Intel Pentium 4 640.

Features Key features of the Pentium 4 640  vs Opteron 140 

clock speed

Pentium 4 640
3.2 GHz
Opteron 140
1.4 GHz

L2 cache

overclocked clock speed (air)

Pentium 4 640
3.92 GHz
Opteron 140
1.4 GHz

overclocked clock speed (water)

Pentium 4 640
3.2 GHz
Opteron 140
1.4 GHz

TDP

Specifications Full list of technical specs

summary

Pentium 4 640  vs
Opteron 140 
Clock speed 3.2 GHz 1.4 GHz
Cores Single core Single core
Socket type
LGA 775
940

features

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

details

Pentium 4 640  vs
Opteron 140 
Threads 2 1
L2 cache 2 MB 1 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 90 nm 130 nm
Max CPUs 1 1
Clock multiplier 16 7
Voltage range 1.2 - 1.4V 1.5 - UnknownV

overclocking

Overclocked clock speed 3.92 GHz 1.4 GHz
Overclocked clock speed (Water) 3.2 GHz 1.4 GHz
Overclocked clock speed (Air) 3.92 GHz 1.4 GHz

power consumption

TDP 84W 82.1W
Annual home energy cost 20.24 $/year 19.78 $/year
Annual commercial energy cost 73.58 $/year 71.92 $/year
Typical power consumption 68.25W 66.71W
Intel Pentium 4 640
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AMD Opteron 140
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