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Differences What are the advantages of each

Front view of Intel Xeon E7-4890 v2

Reasons to consider the
Intel Xeon E7-4890 v2

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Much higher clock speed 2.8 GHz vs 2.5 GHz More than 10% higher clock speed
Higher turbo clock speed 3.4 GHz vs 3.1 GHz Around 10% higher turbo clock speed
Front view of Intel Xeon E7-4880 v2

Reasons to consider the
Intel Xeon E7-4880 v2

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Lower typical power consumption 105.63W vs 125.94W More than 15% lower typical power consumption
Lower annual commercial energy cost 113.88 $/year vs 135.78 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 31.32 $/year vs 37.34 $/year More than 15% lower annual home energy cost

Features Key features of the Xeon E7-4890 v2  vs E7-4880 v2 

clock speed

turbo clock speed

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4890 v2  vs
E7-4880 v2 
Clock speed 2.8 GHz 2.5 GHz
Turbo clock speed 3.4 GHz 3.1 GHz
Cores Pentadeca core Pentadeca core
Socket type
LGA 2011
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 155W 130W
Annual home energy cost 37.34 $/year 31.32 $/year
Annual commercial energy cost 135.78 $/year 113.88 $/year
Typical power consumption 125.94W 105.63W

bus

Architecture QPI QPI
Number of links 3 3
Data rate 96,000 MB/s 96,000 MB/s
Transfer rate 8,000 MT/s 8,000 MT/s
Clock speed 4,000 MHz 4,000 MHz

details

Xeon E7-4890 v2  vs
E7-4880 v2 
Architecture x86-64 x86-64
Threads 30 30
L2 cache 3.5 MB 3.5 MB
L2 cache per core 0.23 MB/core 0.23 MB/core
L3 cache 37.5 MB 37.5 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 4 4
Clock multiplier 28 25
Operating temperature Unknown - 77°C Unknown - 73°C

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 Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 51,200 MB/s 51,200 MB/s
Maximum memory size 1,572,864 MB 1,572,864 MB
Intel Xeon E7-4890 v2
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Intel Xeon E7-4880 v2
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