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Differences What are the advantages of each

Front view of Intel Xeon E7420

Reasons to consider the
Intel Xeon E7420

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Much more l2 cache 8 MB vs 4 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 2 MB/core vs 1 MB/core 2x more l2 cache per core
Newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Sep, 2008 vs Sep, 2007 Release date over a year later
Front view of Intel Xeon E7320

Reasons to consider the
Intel Xeon E7320

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Lower typical power consumption 65W vs 73.13W More than 10% lower typical power consumption
Lower annual commercial energy cost 70.08 $/year vs 78.84 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 21.68 $/year More than 10% lower annual home energy cost

Features Key features of the Xeon E7420  vs E7320 

clock speed

Xeon E7420
2.13 GHz
Xeon E7320
2.13 GHz

L2 cache

overclocked clock speed (air)

Xeon E7420
2.13 GHz
Xeon E7320
2.13 GHz

overclocked clock speed (water)

Xeon E7420
2.13 GHz
Xeon E7320
2.13 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E7420  vs
E7320 
Clock speed 2.13 GHz 2.13 GHz
Cores Quad core Quad core
Socket type
604

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 90W 80W
Annual home energy cost 21.68 $/year 19.27 $/year
Annual commercial energy cost 78.84 $/year 70.08 $/year
Typical power consumption 73.13W 65W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 1,066 MHz

details

Xeon E7420  vs
E7320 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 8 MB 4 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 45 nm 65 nm
Transistor count 1,900,000,000 582,000,000
Max CPUs 32 32
Clock multiplier 8 8
Voltage range 0.9 - 1.45V 1 - 1.5V
Operating temperature Unknown - 68°C Unknown - 66°C

overclocking

Overclocked clock speed 2.13 GHz 2.13 GHz
Overclocked clock speed (Water) 2.13 GHz 2.13 GHz
Overclocked clock speed (Air) 2.13 GHz 2.13 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 E7420
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Intel Xeon E7320
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