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Differences What are the advantages of each

Front view of Intel Xeon 5133

Reasons to consider the
Intel Xeon 5133

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Much lower typical power consumption 32.5W vs 77.19W 2.4x lower typical power consumption
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual home energy cost 9.64 $/year vs 22.89 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 35.04 $/year vs 83.22 $/year 2.4x lower annual commercial energy cost
Better performance per watt 2.03 pt/W vs 1.14 pt/W Around 80% better performance per watt
Front view of Intel Pentium D 945

Reasons to consider the
Intel Pentium D 945

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Significantly higher clock speed 3.4 GHz vs 2.2 GHz Around 55% higher clock speed

Features Key features of the Xeon 5133  vs Pentium D 945 

clock speed

Xeon 5133
2.2 GHz
Pentium D 945
3.4 GHz

L2 cache

TDP

Specifications Full list of technical specs

summary

Xeon 5133  vs
Pentium D 945 
Clock speed 2.2 GHz 3.4 GHz
Cores Dual core Dual core
Socket type
LGA 771
LGA 775

features

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

power consumption

TDP 40W 95W
Annual home energy cost 9.64 $/year 22.89 $/year
Annual commercial energy cost 35.04 $/year 83.22 $/year
Performance per watt 2.03 pt/W 1.14 pt/W
Typical power consumption 32.5W 77.19W

details

Xeon 5133  vs
Pentium D 945 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 4 MB 4 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Transistor count 291,000,000 376,000,000
Max CPUs 2 1
Voltage range 1.15 - 1.25V 1.2 - 1.34V

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 FSB FSB
Number of links 1 1
Clock speed 800 MHz 800 MHz
Intel Xeon 5133
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Intel Pentium D 945
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