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Differences What are the advantages of each

Front view of Intel Xeon E7-4807

Reasons to consider the
Intel Xeon E7-4807

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More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 4 Three times as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Newer Apr, 2011 vs Nov, 2007 Release date over 3 years later
Front view of Intel Xeon E5450

Reasons to consider the
Intel Xeon E5450

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Much more l2 cache 12 MB vs 2 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3 GHz vs 1.86 GHz More than 60% higher clock speed
Much more l2 cache per core 3 MB/core vs 0.33 MB/core 9x more l2 cache per core
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost

Features Key features of the Xeon E7-4807  vs E5450 

clock speed

Xeon E7-4807
1.86 GHz
Xeon E5450
3 GHz

L2 cache

TDP

Specifications Full list of technical specs

summary

Xeon E7-4807  vs
E5450 
Clock speed 1.86 GHz 3 GHz
Cores Hexa core Quad core
Socket type
LGA 1567
LGA 771

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 80W
Annual home energy cost 22.89 $/year 19.27 $/year
Annual commercial energy cost 83.22 $/year 70.08 $/year
Typical power consumption 77.19W 65W

details

Xeon E7-4807  vs
E5450 
Architecture x86-64 x86-64
Threads 12 4
L2 cache 2 MB 12 MB
L2 cache per core 0.33 MB/core 3 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 4 2
Clock multiplier 14 9
Operating temperature Unknown - 70°C Unknown - 67°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 FSB
Number of links 1 1
Clock speed 2,400 MHz 1,333 MHz
Intel Xeon E7-4807
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Intel Xeon E5450
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