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Differences What are the advantages of each

Front view of Intel Core i5 520M

Reasons to consider the
Intel Core i5 520M

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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
Higher clock speed 2.4 GHz vs 2.1 GHz Around 15% higher clock speed
Lower typical power consumption 28.44W vs 44.69W More than 35% lower typical power consumption
Better overclocked clock speed (Air) 2.86 GHz vs 2.1 GHz More than 35% better overclocked clock speed (Air)
More l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Lower annual home energy cost 8.43 $/year vs 13.25 $/year More than 35% lower annual home energy cost
Lower annual commercial energy cost 30.66 $/year vs 48.18 $/year More than 35% lower annual commercial energy cost
Newer Jan, 2010 vs Jul, 2009 Release date 5 months later
Better overclocked clock speed (Water) 2.4 GHz vs 2.1 GHz Around 15% better overclocked clock speed (Water)
Front view of AMD Opteron 2425 HE

Reasons to consider the
AMD Opteron 2425 HE

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Much more l2 cache 3 MB vs 0.5 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 6 vs 2 Three times as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More l3 cache 6 MB vs 3 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More threads 6 vs 4 2 more threads

Features Key features of the Core i5 520M  vs Opteron 2425 HE 

clock speed

Core i5 520M
2.4 GHz
Opteron 2425 HE
2.1 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i5 520M
2.86 GHz
Opteron 2425 HE
2.1 GHz

overclocked clock speed (water)

Core i5 520M
2.4 GHz
Opteron 2425 HE
2.1 GHz

Specifications Full list of technical specs

summary

Core i5 520M  vs
Opteron 2425 HE 
Clock speed 2.4 GHz 2.1 GHz
Cores Dual core Hexa core
Socket type
BGA 1288
rPGA 988A
F
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 35W 55W
Annual home energy cost 8.43 $/year 13.25 $/year
Annual commercial energy cost 30.66 $/year 48.18 $/year
Typical power consumption 28.44W 44.69W

details

Core i5 520M  vs
Opteron 2425 HE 
Threads 4 6
L2 cache 0.5 MB 3 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 3 MB 6 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 2
Clock multiplier 18 10

overclocking

Overclocked clock speed 2.86 GHz 2.1 GHz
Overclocked clock speed (Water) 2.4 GHz 2.1 GHz
Overclocked clock speed (Air) 2.86 GHz 2.1 GHz

integrated graphics

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

bus

Architecture DMI HyperTransport 3.0
Intel Core i5 520M
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AMD Opteron 2425 HE
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