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Intel Xeon E5-1620

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Front view of Intel Xeon E5-1620

Differences What are the advantages of each

Front view of Intel Xeon E5-1620

Reasons to consider the
Intel Xeon E5-1620

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Much higher clock speed 3.6 GHz vs 2.2 GHz Around 65% higher clock speed
Much better PassMark score 9,487 vs 1,291 More than 7.2x better PassMark score
Much better PassMark (Single core) score 2,117 vs 685 More than 3x better PassMark (Single core) score
Much better overclocked clock speed (Air) 3.93 GHz vs 2.2 GHz Around 80% better overclocked clock speed (Air)
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better performance per watt 7.47 pt/W vs 0.87 pt/W More than 8.5x better performance per watt
More threads 8 vs 2 6 more threads
Much better overclocked clock speed (Water) 4.7 GHz vs 2.2 GHz Around 2.2x better overclocked clock speed (Water)
Newer Mar, 2012 vs May, 2005 Release date over 6 years later
Front view of AMD Opteron 275

Reasons to consider the
AMD Opteron 275

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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
Much lower typical power consumption 69.06W vs 105.63W Around 35% lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual commercial energy cost 74.46 $/year vs 113.88 $/year Around 35% lower annual commercial energy cost
Much lower annual home energy cost 20.48 $/year vs 31.32 $/year Around 35% lower annual home energy cost

Benchmarks Real world tests of Xeon E5-1620 vs Opteron 275

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-1620
12,397
Opteron 275
2,534

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-1620
2,460,000 MB/s
Opteron 275
60,200 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-1620  vs
Opteron 275 
Clock speed 3.6 GHz 2.2 GHz
Cores Quad core Dual core
Socket type
LGA 2011
940

features

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

details

Xeon E5-1620  vs
Opteron 275 
Threads 8 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 2
Clock multiplier 38 11
Voltage range 0.6 - 1.35V 1.2 - UnknownV
Operating temperature Unknown - 64°C 0 - 67°C

overclocking

Overclocked clock speed 3.93 GHz 2.2 GHz
Overclocked clock speed (Water) 4.7 GHz 2.2 GHz
Overclocked clock speed (Air) 3.93 GHz 2.2 GHz

power consumption

TDP 130W 85W
Annual home energy cost 31.32 $/year 20.48 $/year
Annual commercial energy cost 113.88 $/year 74.46 $/year
Performance per watt 7.47 pt/W 0.87 pt/W
Typical power consumption 105.63W 69.06W
Intel Xeon E5-1620
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AMD Opteron 275
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