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Differences What are the advantages of each

Front view of Intel Xeon X5460

Reasons to consider the
Intel Xeon X5460

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Much more l2 cache 12 MB vs 1 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3.16 GHz vs 2 GHz Around 60% higher clock speed
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Much newer manufacturing process 45 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.06 GHz vs 2.31 GHz More than 75% better overclocked clock speed (Air)
More cores 4 vs 1 3 more cores; run more applications at once
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Water) 4.07 GHz vs 2 GHz More than 2x better overclocked clock speed (Water)
Newer Nov, 2007 vs May, 2004 Release date over 3 years later
Front view of AMD Opteron 246

Reasons to consider the
AMD Opteron 246

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Significantly lower typical power consumption 69.31W vs 97.5W Around 30% lower typical power consumption
Significantly lower annual commercial energy cost 74.72 $/year vs 105.12 $/year Around 30% lower annual commercial energy cost
Significantly lower annual home energy cost 20.55 $/year vs 28.91 $/year Around 30% lower annual home energy cost

Benchmarks Real world tests of Xeon X5460 vs Opteron 246

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Xeon X5460  vs
Opteron 246 
Clock speed 3.16 GHz 2 GHz
Cores Quad core Single core
Socket type
LGA 771
940

features

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

details

Xeon X5460  vs
Opteron 246 
Threads 4 1
L2 cache 12 MB 1 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 130 nm
Max CPUs 2 2
Clock multiplier 9 10
Voltage range 0.85 - 1.35V 1.3 - UnknownV
Operating temperature Unknown - 63°C 0 - 71°C

overclocking

Overclocked clock speed 4.06 GHz 2.31 GHz
Overclocked clock speed (Water) 4.07 GHz 2 GHz
PassMark (Overclocked) 2,575.6 851.3
Overclocked clock speed (Air) 4.06 GHz 2.31 GHz

power consumption

TDP 120W 85.3W
Annual home energy cost 28.91 $/year 20.55 $/year
Annual commercial energy cost 105.12 $/year 74.72 $/year
Performance per watt 1.48 pt/W 0.3 pt/W
Typical power consumption 97.5W 69.31W
Intel Xeon X5460
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AMD Opteron 246
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