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Differences What are the advantages of each

Front view of Intel Xeon EC5549

Reasons to consider the
Intel Xeon EC5549

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More l3 cache 8 MB vs 3 MB Around 2.8x more l3 cache; more data can be stored in the l3 cache for quick access later
Higher turbo clock speed 2.93 GHz vs 2.66 GHz More than 10% higher turbo clock speed
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Front view of Intel Core i5 450M

Reasons to consider the
Intel Core i5 450M

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 28.44W vs 69.06W 2.4x lower typical power consumption
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 8.43 $/year vs 20.48 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 74.46 $/year 2.4x lower annual commercial energy cost
Newer Jun, 2010 vs Feb, 2010 Release date 4 months later

Features Key features of the Xeon EC5549  vs Core i5 450M 

clock speed

Xeon EC5549
2.53 GHz
Core i5 450M
2.4 GHz

turbo clock speed

Xeon EC5549
2.93 GHz
Core i5 450M
2.66 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon EC5549  vs
Core i5 450M 
Clock speed 2.53 GHz 2.4 GHz
Turbo clock speed 2.93 GHz 2.66 GHz
Cores Quad core Dual core
Socket type
LGA 1366
BGA 1288
rPGA 988A

features

Has a NX bit Yes Yes
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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 19,200 MB/s 17,066.66 MB/s

details

Xeon EC5549  vs
Core i5 450M 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 1

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 500 MHz
Turbo clock speed N/A 766 MHz

power consumption

TDP 85W 35W
Annual home energy cost 20.48 $/year 8.43 $/year
Annual commercial energy cost 74.46 $/year 30.66 $/year
Typical power consumption 69.06W 28.44W

bus

Architecture QPI DMI
Number of links 1 1
Transfer rate 5,870 MT/s 2,500 MT/s
Intel Xeon EC5549
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Intel Core i5 450M
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