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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 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 13.81W vs 72.31W 5.2x lower typical power consumption
Newer Jun, 2011 vs Sep, 2003 Release date over 7 years later
Much higher Maximum operating temperature 100 °C vs 71 °C More than 40% higher Maximum operating temperature
Much lower annual home energy cost 4.1 $/year vs 21.44 $/year 5.2x lower annual home energy cost
Much lower annual commercial energy cost 14.89 $/year vs 77.96 $/year 5.2x lower annual commercial energy cost
More cores 2 vs 1 Twice as many cores; run more applications at once
Front view of AMD Opteron 846

Reasons to consider the
AMD Opteron 846

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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 GHz vs 1.1 GHz More than 80% higher clock speed
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 GHz vs 1.1 GHz More than 80% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2 GHz vs 1.1 GHz More than 80% better overclocked clock speed (Water)

Features Key features of the Celeron 847  vs Opteron 846 

clock speed

Celeron 847
1.1 GHz
Opteron 846
2 GHz

L2 cache

overclocked clock speed (air)

Celeron 847
1.1 GHz
Opteron 846
2 GHz

overclocked clock speed (water)

Celeron 847
1.1 GHz
Opteron 846
2 GHz

TDP

Specifications Full list of technical specs

summary

Celeron 847  vs
Opteron 846 
Clock speed 1.1 GHz 2 GHz
Cores Dual core Single 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 846 
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 8
Clock multiplier 11 10
Operating temperature Unknown - 100°C 0 - 71°C

overclocking

Overclocked clock speed 1.1 GHz 2 GHz
Overclocked clock speed (Water) 1.1 GHz 2 GHz
Overclocked clock speed (Air) 1.1 GHz 2 GHz

power consumption

TDP 17W 89W
Annual home energy cost 4.1 $/year 21.44 $/year
Annual commercial energy cost 14.89 $/year 77.96 $/year
Typical power consumption 13.81W 72.31W
Intel Celeron 847
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AMD Opteron 846
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