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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
Much higher Maximum operating temperature 100 °C vs 71 °C More than 40% higher Maximum operating temperature
Newer Jun, 2011 vs Nov, 2003 Release date over 7 years later
Better performance per watt 3.23 pt/W vs 1.15 pt/W More than 2.8x better performance per watt
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
Better geekbench 3 Multi-Core score 1,460 vs 958 More than 50% better geekbench 3 Multi-Core score
Front view of AMD Opteron 848

Reasons to consider the
AMD Opteron 848

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Much better geekbench 3 AES single core score 123,000 MB/s vs 54,500 MB/s More than 2.2x better geekbench 3 AES single core score
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
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) 2.4 GHz vs 1.1 GHz Around 2.2x better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.2 GHz vs 1.1 GHz 2x better overclocked clock speed (Water)

Benchmarks Real world tests of Celeron 847 vs Opteron 848

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Celeron 847
54,500 MB/s
Opteron 848
123,000 MB/s

Specifications Full list of technical specs

summary

Celeron 847  vs
Opteron 848 
Clock speed 1.1 GHz 2.2 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 848 
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 11
Operating temperature Unknown - 100°C 0 - 71°C

overclocking

Overclocked clock speed 1.1 GHz 2.4 GHz
Overclocked clock speed (Water) 1.1 GHz 2.2 GHz
Overclocked clock speed (Air) 1.1 GHz 2.4 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
Performance per watt 3.23 pt/W 1.15 pt/W
Typical power consumption 13.81W 72.31W
Intel Celeron 847
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AMD Opteron 848
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