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Differences What are the advantages of each

Front view of Intel Xeon E5345

Reasons to consider the
Intel Xeon E5345

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Much more l2 cache per core 2 MB/core vs 1 MB/core 2x more l2 cache per core
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 65W vs 96.69W Around 35% lower typical power consumption
More threads 4 vs 2 Twice as many threads
Significantly lower annual commercial energy cost 70.08 $/year vs 104.24 $/year Around 35% lower annual commercial energy cost
Significantly lower annual home energy cost 19.27 $/year vs 28.67 $/year Around 35% lower annual home energy cost
Front view of AMD Opteron 8222 SE

Reasons to consider the
AMD Opteron 8222 SE

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Much higher clock speed 3 GHz vs 2.33 GHz Around 30% higher clock speed
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Significantly better overclocked clock speed (Air) 3 GHz vs 2.7 GHz More than 10% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3 GHz vs 2.33 GHz Around 30% better overclocked clock speed (Water)
Newer Aug, 2007 vs Nov, 2006 Release date 8 months later

Features Key features of the Xeon E5345  vs Opteron 8222 SE 

clock speed

Xeon E5345
2.33 GHz

L2 cache

overclocked clock speed (air)

Xeon E5345
2.7 GHz

overclocked clock speed (water)

Xeon E5345
2.33 GHz

Specifications Full list of technical specs

summary

Xeon E5345  vs
Opteron 8222 SE 
Clock speed 2.33 GHz 3 GHz
Cores Quad core Dual core
Socket type
LGA 771
F

features

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

power consumption

TDP 80W 119W
Annual home energy cost 19.27 $/year 28.67 $/year
Annual commercial energy cost 70.08 $/year 104.24 $/year
Typical power consumption 65W 96.69W

details

Xeon E5345  vs
Opteron 8222 SE 
Threads 4 2
L2 cache 8 MB 2 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 2 8
Clock multiplier 7 15
Voltage range 1 - 1.5V 1.3 - UnknownV
Operating temperature Unknown - 66°C 0 - 55°C

overclocking

Overclocked clock speed 2.7 GHz 3 GHz
Overclocked clock speed (Water) 2.33 GHz 3 GHz
Overclocked clock speed (Air) 2.7 GHz 3 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Xeon E5345
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AMD Opteron 8222 SE
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