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Differences What are the advantages of each

Front view of Intel Xeon E7340

Reasons to consider the
Intel Xeon E7340

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Much more l2 cache 8 MB vs 3 MB Around 2.8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 2.4 GHz vs 2.1 GHz Around 15% higher clock speed
Supports more CPUs in SMP configuration 32 vs 8 24 supports more CPUs in SMP configuration
Much more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Significantly better overclocked clock speed (Air) 2.4 GHz vs 2.1 GHz Around 15% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.4 GHz vs 2.1 GHz Around 15% better overclocked clock speed (Water)
Front view of AMD Opteron 8425 HE

Reasons to consider the
AMD Opteron 8425 HE

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More cores 6 vs 4 2 more cores; run more applications at once
Newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 44.69W vs 65W More than 30% lower typical power consumption
More threads 6 vs 4 2 more threads
Lower annual commercial energy cost 48.18 $/year vs 70.08 $/year More than 30% lower annual commercial energy cost
Lower annual home energy cost 13.25 $/year vs 19.27 $/year More than 30% lower annual home energy cost
Newer Jul, 2009 vs Sep, 2007 Release date over 1 years later

Features Key features of the Xeon E7340  vs Opteron 8425 HE 

clock speed

Xeon E7340
2.4 GHz
Opteron 8425 HE
2.1 GHz

L2 cache

overclocked clock speed (air)

Xeon E7340
2.4 GHz
Opteron 8425 HE
2.1 GHz

overclocked clock speed (water)

Xeon E7340
2.4 GHz
Opteron 8425 HE
2.1 GHz

Specifications Full list of technical specs

summary

Xeon E7340  vs
Opteron 8425 HE 
Clock speed 2.4 GHz 2.1 GHz
Cores Quad core Hexa core
Socket type
604
F

features

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

power consumption

TDP 80W 55W
Annual home energy cost 19.27 $/year 13.25 $/year
Annual commercial energy cost 70.08 $/year 48.18 $/year
Typical power consumption 65W 44.69W

bus

Architecture FSB HyperTransport 3.0
Clock speed 1,066 MHz 2,200 MHz

details

Xeon E7340  vs
Opteron 8425 HE 
Threads 4 6
L2 cache 8 MB 3 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 32 8
Clock multiplier 9 10
Voltage range 1 - 1.5V 1 - UnknownV
Operating temperature Unknown - 66°C 0 - 55°C

overclocking

Overclocked clock speed 2.4 GHz 2.1 GHz
Overclocked clock speed (Water) 2.4 GHz 2.1 GHz
Overclocked clock speed (Air) 2.4 GHz 2.1 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 E7340
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AMD Opteron 8425 HE
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