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Differences What are the advantages of each

Front view of Intel Xeon 5040

Reasons to consider the
Intel Xeon 5040

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Much more l2 cache 4 MB vs 0.5 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Core i3 550

Reasons to consider the
Intel Core i3 550

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Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher clock speed 3.2 GHz vs 2.83 GHz Around 15% higher clock speed
Much better overclocked clock speed (Air) 4.54 GHz vs 2.83 GHz More than 60% better overclocked clock speed (Air)
Lower typical power consumption 59.31W vs 77.19W Around 25% lower typical power consumption
Higher Maximum operating temperature 72.6 °C vs 67 °C Around 10% higher Maximum operating temperature
Lower annual home energy cost 17.59 $/year vs 22.89 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 63.95 $/year vs 83.22 $/year Around 25% lower annual commercial energy cost
Better overclocked clock speed (Water) 3.2 GHz vs 2.83 GHz Around 15% better overclocked clock speed (Water)

Features Key features of the Xeon 5040  vs Core i3 550 

clock speed

Xeon 5040
2.83 GHz
Core i3 550
3.2 GHz

L2 cache

Xeon 5040
4 MB
Core i3 550
0.5 MB

overclocked clock speed (air)

Xeon 5040
2.83 GHz
Core i3 550
4.54 GHz

overclocked clock speed (water)

Xeon 5040
2.83 GHz
Core i3 550
3.2 GHz

TDP

Specifications Full list of technical specs

summary

Xeon 5040  vs
Core i3 550 
Clock speed 2.83 GHz 3.2 GHz
Cores Dual core Dual core
Socket type
LGA 771
LGA 1156
Is unlocked Yes No

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
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 73W
Annual home energy cost 22.89 $/year 17.59 $/year
Annual commercial energy cost 83.22 $/year 63.95 $/year
Typical power consumption 77.19W 59.31W

bus

Architecture FSB DMI
Number of links 1 1

details

Xeon 5040  vs
Core i3 550 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 4 MB 0.5 MB
L2 cache per core 2 MB/core 0.25 MB/core
Manufacture process 65 nm 32 nm
Transistor count 376,000,000 382,000,000
Max CPUs 2 1
Clock multiplier 17 24
Voltage range 1.07 - 1.35V 0.65 - 1.4V
Operating temperature Unknown - 67°C Unknown - 72.6°C

overclocking

Overclocked clock speed 2.83 GHz 4.54 GHz
Overclocked clock speed (Water) 2.83 GHz 3.2 GHz
Overclocked clock speed (Air) 2.83 GHz 4.54 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 733 MHz

memory controller

Memory controller Built-in Built-in
Intel Xeon 5040
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Intel Core i3 550
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