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Differences What are the advantages of each

Front view of Intel Xeon E5-2650

Reasons to consider the
Intel Xeon E5-2650

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Much more l3 cache 20 MB vs 6 MB More than 3.2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better PassMark score 10,190 vs 2,640 More than 3.8x better PassMark score
More threads 16 vs 4 12 more threads
More cores 8 vs 4 Twice as many cores; run more applications at once
Much better performance per watt 6.61 pt/W vs 1.44 pt/W More than 4.5x better performance per watt
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 2.5 MB/core vs 1.5 MB/core More than 65% more l3 cache per core
Newer Mar, 2012 vs Nov, 2008 Release date over 3 years later
Slightly better overclocked clock speed (Air) 2.55 GHz vs 2.51 GHz Almost the same
Front view of AMD Opteron 2380

Reasons to consider the
AMD Opteron 2380

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Much higher clock speed 2.5 GHz vs 2 GHz 25% higher clock speed
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Lower typical power consumption 60.94W vs 77.19W More than 20% lower typical power consumption
Much better overclocked clock speed (Water) 2.5 GHz vs 2 GHz 25% better overclocked clock speed (Water)
Lower annual commercial energy cost 65.7 $/year vs 83.22 $/year More than 20% lower annual commercial energy cost
Lower annual home energy cost 18.07 $/year vs 22.89 $/year More than 20% lower annual home energy cost

Benchmarks Real world tests of Xeon E5-2650 vs Opteron 2380

PassMark Data courtesy Passmark

Xeon E5-2650
10,190
Opteron 2380
2,640

Specifications Full list of technical specs

summary

Xeon E5-2650  vs
Opteron 2380 
Clock speed 2 GHz 2.5 GHz
Cores Octa core Quad core
Socket type
LGA 2011
F

features

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

power consumption

TDP 95W 75W
Annual home energy cost 22.89 $/year 18.07 $/year
Annual commercial energy cost 83.22 $/year 65.7 $/year
Performance per watt 6.61 pt/W 1.44 pt/W
Typical power consumption 77.19W 60.94W

bus

Clock speed 4,000 MHz 2,000 MHz

details

Xeon E5-2650  vs
Opteron 2380 
Threads 16 4
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 20 MB 6 MB
L3 cache per core 2.5 MB/core 1.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 2
Clock multiplier 28 12
Voltage range 0.6 - 1.35V 1.3 - UnknownV
Operating temperature Unknown - 77.4°C 0 - 55°C

overclocking

Overclocked clock speed 2.55 GHz 2.51 GHz
Overclocked clock speed (Water) 2 GHz 2.5 GHz
Overclocked clock speed (Air) 2.55 GHz 2.51 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 E5-2650
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AMD Opteron 2380
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