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Differences What are the advantages of each

Front view of Intel Xeon L5520

Reasons to consider the
Intel Xeon L5520

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Much more l3 cache 8 MB vs 1 MB 8x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More threads 8 vs 2 6 more threads
Much more l3 cache per core 2 MB/core vs 0.5 MB/core 4x more l3 cache per core
Significantly lower typical power consumption 48.75W vs 77.19W More than 35% lower typical power consumption
Much better overclocked clock speed (Air) 3.42 GHz vs 2.91 GHz Around 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.08 GHz vs 2.6 GHz More than 55% better overclocked clock speed (Water)
Newer Mar, 2009 vs Aug, 2006 Release date over 2 years later
Significantly lower annual commercial energy cost 52.56 $/year vs 83.22 $/year More than 35% lower annual commercial energy cost
Significantly lower annual home energy cost 14.45 $/year vs 22.89 $/year More than 35% lower annual home energy cost
Front view of AMD Opteron 8218

Reasons to consider the
AMD Opteron 8218

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Much higher clock speed 2.6 GHz vs 2.26 GHz More than 15% higher clock speed
Much 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 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration

Features Key features of the Xeon L5520  vs Opteron 8218 

clock speed

Xeon L5520
2.26 GHz
Opteron 8218
2.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon L5520
3.42 GHz
Opteron 8218
2.91 GHz

overclocked clock speed (water)

Xeon L5520
4.08 GHz
Opteron 8218
2.6 GHz

TDP

Specifications Full list of technical specs

summary

Xeon L5520  vs
Opteron 8218 
Clock speed 2.26 GHz 2.6 GHz
Cores Quad core Dual core
Socket type
LGA 1366
F

features

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

power consumption

TDP 60W 95W
Annual home energy cost 14.45 $/year 22.89 $/year
Annual commercial energy cost 52.56 $/year 83.22 $/year
Typical power consumption 48.75W 77.19W

details

Xeon L5520  vs
Opteron 8218 
Threads 8 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 8 MB 1 MB
L3 cache per core 2 MB/core 0.5 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 2 8
Operating temperature Unknown - 70°C 0 - 55°C

overclocking

Overclocked clock speed 3.42 GHz 2.91 GHz
Overclocked clock speed (Water) 4.08 GHz 2.6 GHz
Overclocked clock speed (Air) 3.42 GHz 2.91 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 L5520
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AMD Opteron 8218
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