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Differences What are the advantages of each

Front view of Intel Celeron 847

Reasons to consider the
Intel Celeron 847

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 13.81W vs 69.06W 5x lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 67 °C Around 50% higher Maximum operating temperature
Newer Jun, 2011 vs Jan, 2005 Release date over 6 years later
Much lower annual home energy cost 4.1 $/year vs 20.48 $/year 5x lower annual home energy cost
Much lower annual commercial energy cost 14.89 $/year vs 74.46 $/year 5x lower annual commercial energy cost
Front view of AMD Opteron 875

Reasons to consider the
AMD Opteron 875

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly higher clock speed 2.2 GHz vs 1.1 GHz 2x higher clock speed
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 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Significantly better overclocked clock speed (Air) 2.2 GHz vs 1.1 GHz Around 2x better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.2 GHz vs 1.1 GHz 2x better overclocked clock speed (Water)

Features Key features of the Celeron 847  vs Opteron 875 

clock speed

Celeron 847
1.1 GHz
Opteron 875
2.2 GHz

L2 cache

overclocked clock speed (air)

Celeron 847
1.1 GHz
Opteron 875
2.2 GHz

overclocked clock speed (water)

Celeron 847
1.1 GHz
Opteron 875
2.2 GHz

TDP

Specifications Full list of technical specs

summary

Celeron 847  vs
Opteron 875 
Clock speed 1.1 GHz 2.2 GHz
Cores Dual core Dual core
Socket type
BGA 1023
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Celeron 847  vs
Opteron 875 
Threads 2 2
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 8
Clock multiplier 11 11
Operating temperature Unknown - 100°C 0 - 67°C

overclocking

Overclocked clock speed 1.1 GHz 2.2 GHz
Overclocked clock speed (Water) 1.1 GHz 2.2 GHz
Overclocked clock speed (Air) 1.1 GHz 2.2 GHz

power consumption

TDP 17W 85W
Annual home energy cost 4.1 $/year 20.48 $/year
Annual commercial energy cost 14.89 $/year 74.46 $/year
Typical power consumption 13.81W 69.06W
Intel Celeron 847
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AMD Opteron 875
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