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Differences What are the advantages of each

Front view of Intel Xeon E3-1220 v2

Reasons to consider the
Intel Xeon E3-1220 v2

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Much more l3 cache 8 MB vs 4 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Significantly newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.1 GHz vs 3 GHz Around 5% higher clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Air) 3.45 GHz vs 3 GHz More than 15% better overclocked clock speed (Air)
Significantly lower typical power consumption 56.06W vs 77.19W More than 25% lower typical power consumption
Newer May, 2012 vs Aug, 2006 Release date over 5 years later
Significantly lower annual commercial energy cost 60.44 $/year vs 83.22 $/year More than 25% lower annual commercial energy cost
Significantly lower annual home energy cost 16.62 $/year vs 22.89 $/year More than 25% lower annual home energy cost
Better overclocked clock speed (Water) 3.1 GHz vs 3 GHz Around 5% better overclocked clock speed (Water)
Front view of Intel Xeon 7120M

Reasons to consider the
Intel Xeon 7120M

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 32 vs 1 31 supports more CPUs in SMP configuration
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core

Features Key features of the Xeon E3-1220 v2  vs 7120M 

clock speed

Xeon E3-1220 v2
3.1 GHz
Xeon 7120M
3 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E3-1220 v2
3.45 GHz
Xeon 7120M
3 GHz

overclocked clock speed (water)

Xeon E3-1220 v2
3.1 GHz
Xeon 7120M
3 GHz

Specifications Full list of technical specs

summary

Xeon E3-1220 v2  vs
7120M 
Clock speed 3.1 GHz 3 GHz
Cores Quad core Dual core
Socket type
LGA 1155
604

features

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

power consumption

TDP 69W 95W
Annual home energy cost 16.62 $/year 22.89 $/year
Annual commercial energy cost 60.44 $/year 83.22 $/year
Typical power consumption 56.06W 77.19W

bus

Architecture DMI FSB
Number of links 1 1

details

Xeon E3-1220 v2  vs
7120M 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 2 MB/core
L3 cache 8 MB 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 65 nm
Max CPUs 1 32
Clock multiplier 31 15

overclocking

Overclocked clock speed 3.45 GHz 3 GHz
Overclocked clock speed (Water) 3.1 GHz 3 GHz
Overclocked clock speed (Air) 3.45 GHz 3 GHz

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
Intel Xeon E3-1220 v2
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Intel Xeon 7120M
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