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Differences What are the advantages of each

Front view of Intel Pentium 1403

Reasons to consider the
Intel Pentium 1403

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Much higher clock speed 2.6 GHz vs 1.4 GHz More than 85% higher clock speed
Much newer manufacturing process 32 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 8.62 pt/W vs 0.2 pt/W More than 43.8x better performance per watt
Much better overclocked clock speed (Air) 2.6 GHz vs 1.4 GHz More than 85% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.6 GHz vs 1.4 GHz More than 85% better overclocked clock speed (Water)
More threads 2 vs 1 Twice as many threads
Newer May, 2012 vs Jun, 2003 Release date over 9 years later
Front view of AMD Opteron 140

Reasons to consider the
AMD Opteron 140

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Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core

Benchmarks Real world tests of Pentium 1403 vs Opteron 140

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Pentium 1403  vs
Opteron 140 
Clock speed 2.6 GHz 1.4 GHz
Cores Dual core Single core

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES

details

Pentium 1403  vs
Opteron 140 
Threads 2 1
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 130 nm
Max CPUs 1 1
Voltage range 0.6 - 1.35V 1.5 - UnknownV

overclocking

Overclocked clock speed 2.6 GHz 1.4 GHz
Overclocked clock speed (Water) 2.6 GHz 1.4 GHz
Overclocked clock speed (Air) 2.6 GHz 1.4 GHz

power consumption

TDP 80W 82.1W
Annual home energy cost 19.27 $/year 19.78 $/year
Annual commercial energy cost 70.08 $/year 71.92 $/year
Performance per watt 8.62 pt/W 0.2 pt/W
Typical power consumption 65W 66.71W
Intel Pentium 1403
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AMD Opteron 140
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