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Differences What are the advantages of each

Front view of Intel Xeon X5650

Reasons to consider the
Intel Xeon X5650

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Much higher clock speed 2.66 GHz vs 2 GHz Around 35% higher clock speed
Much more l3 cache 12 MB vs 2 MB 6x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 4 Three times as many threads
Significantly newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache per core 2 MB/core vs 0.5 MB/core 4x more l3 cache per core
Lower typical power consumption 77.19W vs 93.44W More than 15% lower typical power consumption
Lower annual commercial energy cost 83.22 $/year vs 100.74 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 22.89 $/year vs 27.7 $/year More than 15% lower annual home energy cost
Front view of AMD Third Generation Opteron 8350

Reasons to consider the
AMD Third Generation Opteron 8350

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Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Significantly more l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core

Features Key features of the Xeon X5650  vs Third Generation Opteron 8350 

Specifications Full list of technical specs

summary

Xeon X5650  vs
Third Generation Opteron 8350 
Clock speed 2.66 GHz 2 GHz
Cores Hexa core Quad core

features

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

details

Xeon X5650  vs
Third Generation Opteron 8350 
Threads 12 4
L2 cache 2 MB 2 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
L3 cache 12 MB 2 MB
L3 cache per core 2 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 2 8

power consumption

TDP 95W 115W
Annual home energy cost 22.89 $/year 27.7 $/year
Annual commercial energy cost 83.22 $/year 100.74 $/year
Typical power consumption 77.19W 93.44W

bus

Clock speed 3,200 MHz 1,000 MHz
Intel Xeon X5650
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AMD Third Generation Opteron 8350
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