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Differences What are the advantages of each

Front view of Intel Xeon E7-8870

Reasons to consider the
Intel Xeon E7-8870

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Much more l3 cache 30 MB vs 16 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 3 MB/core vs 1 MB/core 3x more l3 cache per core
More threads 20 vs 16 4 more threads
Supports more CPUs in SMP configuration 8 vs 4 Twice as many CPUs in SMP configuration
Front view of AMD Opteron 6380

Reasons to consider the
AMD Opteron 6380

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Much more l2 cache 16 MB vs 3 MB More than 5.2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher turbo clock speed 3.4 GHz vs 2.8 GHz More than 20% higher turbo clock speed
Higher clock speed 2.5 GHz vs 2.4 GHz Around 5% higher clock speed
Much more l2 cache per core 1 MB/core vs 0.3 MB/core More than 3.2x more l2 cache per core
Much better overclocked clock speed (Air) 2.93 GHz vs 2.51 GHz More than 15% better overclocked clock speed (Air)
Lower typical power consumption 93.44W vs 105.63W More than 10% lower typical power consumption
Newer Nov, 2012 vs Apr, 2011 Release date over 1 years later
Lower annual commercial energy cost 100.74 $/year vs 113.88 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 27.7 $/year vs 31.32 $/year More than 10% lower annual home energy cost
Better overclocked clock speed (Water) 2.5 GHz vs 2.4 GHz Around 5% better overclocked clock speed (Water)

Features Key features of the Xeon E7-8870  vs Opteron 6380 

clock speed

Xeon E7-8870
2.4 GHz
Opteron 6380
2.5 GHz

turbo clock speed

Xeon E7-8870
2.8 GHz
Opteron 6380
3.4 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E7-8870
2.51 GHz
Opteron 6380
2.93 GHz

overclocked clock speed (water)

Xeon E7-8870
2.4 GHz
Opteron 6380
2.5 GHz

Specifications Full list of technical specs

summary

Xeon E7-8870  vs
Opteron 6380 
Clock speed 2.4 GHz 2.5 GHz
Turbo clock speed 2.8 GHz 3.4 GHz
Cores Deca core 16 core
Socket type
LGA 1567
G34

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 115W
Annual home energy cost 31.32 $/year 27.7 $/year
Annual commercial energy cost 113.88 $/year 100.74 $/year
Typical power consumption 105.63W 93.44W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 25,600 MB/s

details

Xeon E7-8870  vs
Opteron 6380 
Threads 20 16
L2 cache 3 MB 16 MB
L2 cache per core 0.3 MB/core 1 MB/core
L3 cache 30 MB 16 MB
L3 cache per core 3 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 8 4
Clock multiplier 18 17
Operating temperature Unknown - 69°C Unknown - 69°C

overclocking

Overclocked clock speed 2.51 GHz 2.93 GHz
Overclocked clock speed (Water) 2.4 GHz 2.5 GHz
Overclocked clock speed (Air) 2.51 GHz 2.93 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

bus

Architecture QPI HyperTransport 3.0
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
Intel Xeon E7-8870
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AMD Opteron 6380
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