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Differences What are the advantages of each

Front view of Intel Xeon E7-4880 v2

Reasons to consider the
Intel Xeon E7-4880 v2

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Much more l3 cache 37.5 MB vs 8 MB Around 4.8x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l2 cache 3.5 MB vs 1 MB 3.5x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more RAM 1,572,864 MB vs 33,556.48 MB Supports more than 46.8x more RAM
More threads 30 vs 4 26 more threads
More cores 15 vs 4 11 more cores; run more applications at once
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Newer Feb, 2014 vs May, 2012 Release date over 1 years later
Front view of Intel Xeon E3-1220 v2

Reasons to consider the
Intel Xeon E3-1220 v2

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Much higher clock speed 3.1 GHz vs 2.5 GHz Around 25% higher clock speed
Significantly higher turbo clock speed 3.5 GHz vs 3.1 GHz Around 15% higher turbo clock speed
Much lower typical power consumption 56.06W vs 105.63W More than 45% lower typical power consumption
Much lower annual commercial energy cost 60.44 $/year vs 113.88 $/year More than 45% lower annual commercial energy cost
Much lower annual home energy cost 16.62 $/year vs 31.32 $/year More than 45% lower annual home energy cost

Features Key features of the Xeon E7-4880 v2  vs E3-1220 v2 

clock speed

turbo clock speed

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4880 v2  vs
E3-1220 v2 
Clock speed 2.5 GHz 3.1 GHz
Turbo clock speed 3.1 GHz 3.5 GHz
Cores Pentadeca core Quad core
Socket type
LGA 2011
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
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 130W 69W
Annual home energy cost 31.32 $/year 16.62 $/year
Annual commercial energy cost 113.88 $/year 60.44 $/year
Typical power consumption 105.63W 56.06W

bus

Architecture QPI DMI
Number of links 3 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Xeon E7-4880 v2  vs
E3-1220 v2 
Architecture x86-64 x86-64
Threads 30 4
L2 cache 3.5 MB 1 MB
L2 cache per core 0.23 MB/core 0.25 MB/core
L3 cache 37.5 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 4 1
Clock multiplier 25 31

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 1,572,864 MB 33,556.48 MB
Intel Xeon E7-4880 v2
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Intel Xeon E3-1220 v2
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