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Differences What are the advantages of each

Front view of Intel Xeon E7-4860

Reasons to consider the
Intel Xeon E7-4860

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Much more l3 cache 24 MB vs 6 MB 4x more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 20 vs 4 16 more threads
Much more l2 cache 3 MB vs 2 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 10 vs 4 6 more cores; run more applications at once
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache per core 2.4 MB/core vs 1.5 MB/core 60% more l3 cache per core
Newer Apr, 2011 vs Apr, 2009 Release date over 1 years later
Front view of AMD Opteron 8381 HE

Reasons to consider the
AMD Opteron 8381 HE

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Significantly higher clock speed 2.5 GHz vs 2.26 GHz More than 10% higher clock speed
Much lower typical power consumption 44.69W vs 105.63W 2.4x lower typical power consumption
Supports more CPUs in SMP configuration 8 vs 4 Twice as many CPUs in SMP configuration
Significantly more l2 cache per core 0.5 MB/core vs 0.3 MB/core More than 65% more l2 cache per core
Much lower annual commercial energy cost 48.18 $/year vs 113.88 $/year 2.4x lower annual commercial energy cost
Much lower annual home energy cost 13.25 $/year vs 31.32 $/year 2.4x lower annual home energy cost

Features Key features of the Xeon E7-4860  vs Opteron 8381 HE 

clock speed

Xeon E7-4860
2.26 GHz
Opteron 8381 HE
2.5 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4860  vs
Opteron 8381 HE 
Clock speed 2.26 GHz 2.5 GHz
Cores Deca 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
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 55W
Annual home energy cost 31.32 $/year 13.25 $/year
Annual commercial energy cost 113.88 $/year 48.18 $/year
Typical power consumption 105.63W 44.69W

details

Xeon E7-4860  vs
Opteron 8381 HE 
Threads 20 4
L2 cache 3 MB 2 MB
L2 cache per core 0.3 MB/core 0.5 MB/core
L3 cache 24 MB 6 MB
L3 cache per core 2.4 MB/core 1.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 4 8
Clock multiplier 17 12
Operating temperature Unknown - 69°C 0 - 55°C

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

bus

Architecture QPI HyperTransport 3.0
Clock speed 3,200 MHz 2,000 MHz
Intel Xeon E7-4860
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AMD Opteron 8381 HE
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