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Differences What are the advantages of each

Front view of Intel Xeon X6550

Reasons to consider the
Intel Xeon X6550

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Much more l3 cache 18 MB vs 2 MB 9x more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 16 vs 4 12 more threads
More cores 8 vs 4 Twice as many cores; run more applications at once
Much more l3 cache per core 2.25 MB/core vs 0.5 MB/core 4.5x more l3 cache per core
Newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Better overclocked clock speed (Air) 2.07 GHz vs 2 GHz Around 5% better overclocked clock speed (Air)
Newer Mar, 2010 vs Apr, 2008 Release date over 2 years later
Front view of AMD Opteron 8350

Reasons to consider the
AMD Opteron 8350

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Much lower typical power consumption 60.94W vs 105.63W More than 40% lower typical power consumption
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual commercial energy cost 65.7 $/year vs 113.88 $/year More than 40% lower annual commercial energy cost
Much lower annual home energy cost 18.07 $/year vs 31.32 $/year More than 40% lower annual home energy cost

Features Key features of the Xeon X6550  vs Opteron 8350 

clock speed

Xeon X6550
2 GHz
Opteron 8350
2 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon X6550
2.07 GHz
Opteron 8350
2 GHz

overclocked clock speed (water)

Xeon X6550
2 GHz
Opteron 8350
2 GHz

TDP

Specifications Full list of technical specs

summary

Xeon X6550  vs
Opteron 8350 
Clock speed 2 GHz 2 GHz
Cores Octa core Quad core
Socket type
LGA 1567
F

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 75W
Annual home energy cost 31.32 $/year 18.07 $/year
Annual commercial energy cost 113.88 $/year 65.7 $/year
Typical power consumption 105.63W 60.94W

bus

Clock speed 3,200 MHz 1,000 MHz

details

Xeon X6550  vs
Opteron 8350 
Threads 16 4
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 18 MB 2 MB
L3 cache per core 2.25 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 2 8
Operating temperature Unknown - 69°C 0 - 55°C

overclocking

Overclocked clock speed 2.07 GHz 2 GHz
Overclocked clock speed (Water) 2 GHz 2 GHz
Overclocked clock speed (Air) 2.07 GHz 2 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 X6550
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AMD Opteron 8350
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