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Differences What are the advantages of each

Front view of Intel Celeron E1200

Reasons to consider the
Intel Celeron E1200

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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly better overclocked clock speed (Air) 3.16 GHz vs 2.2 GHz Around 45% better overclocked clock speed (Air)
Newer Jan, 2008 vs Apr, 2005 Release date over 2 years later
Higher Maximum operating temperature 73.3 °C vs 67 °C Around 10% higher Maximum operating temperature
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Better overclocked clock speed (Water) 2.69 GHz vs 2.2 GHz More than 20% better overclocked clock speed (Water)
Front view of AMD Opteron 875

Reasons to consider the
AMD Opteron 875

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Higher clock speed 2.2 GHz vs 1.6 GHz Around 40% higher clock speed
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core

Features Key features of the Celeron E1200  vs Opteron 875 

clock speed

Celeron E1200
1.6 GHz
Opteron 875
2.2 GHz

L2 cache

overclocked clock speed (air)

Celeron E1200
3.16 GHz
Opteron 875
2.2 GHz

overclocked clock speed (water)

Celeron E1200
2.69 GHz
Opteron 875
2.2 GHz

Specifications Full list of technical specs

summary

Celeron E1200  vs
Opteron 875 
Clock speed 1.6 GHz 2.2 GHz
Cores Dual core Dual core
Socket type
LGA 775
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

details

Celeron E1200  vs
Opteron 875 
Threads 2 2
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 8
Clock multiplier 8 11
Voltage range 0.85 - 1.5V 1 - UnknownV
Operating temperature Unknown - 73.3°C 0 - 67°C

overclocking

Overclocked clock speed 3.16 GHz 2.2 GHz
Overclocked clock speed (Water) 2.69 GHz 2.2 GHz
PassMark (Overclocked) 1,815.5 1,218.6
Overclocked clock speed (Air) 3.16 GHz 2.2 GHz

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 22.89 $/year
Annual commercial energy cost 56.94 $/year 83.22 $/year
Typical power consumption 52.81W 77.19W
Intel Celeron E1200
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AMD Opteron 875
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