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Differences What are the advantages of each

Front view of Intel Xeon Phi 7120P

Reasons to consider the
Intel Xeon Phi 7120P

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More threads 244 vs 16 228 more threads
Much more l2 cache 30.5 MB vs 16 MB More than 90% more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 8 vs 4 Twice as many CPUs in SMP configuration
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jun, 2013 vs Nov, 2012 Release date 7 months later
Front view of AMD Opteron 6380

Reasons to consider the
AMD Opteron 6380

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Much higher clock speed 2.5 GHz vs 1.24 GHz More than 2x higher clock speed
Much higher turbo clock speed 3.4 GHz vs 1.33 GHz More than 2.5x higher turbo clock speed
Much lower typical power consumption 93.44W vs 243.75W 2.6x lower typical power consumption
Much better overclocked clock speed (Air) 2.93 GHz vs 1.24 GHz More than 2.2x better overclocked clock speed (Air)
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much lower annual commercial energy cost 100.74 $/year vs 262.8 $/year 2.6x lower annual commercial energy cost
Much lower annual home energy cost 27.7 $/year vs 72.27 $/year 2.6x lower annual home energy cost
Much better overclocked clock speed (Water) 2.5 GHz vs 1.24 GHz More than 2x better overclocked clock speed (Water)

Features Key features of the Xeon Phi 7120P  vs Opteron 6380 

clock speed

Xeon Phi 7120P
1.24 GHz
Opteron 6380
2.5 GHz

turbo clock speed

Xeon Phi 7120P
1.33 GHz
Opteron 6380
3.4 GHz

L2 cache

overclocked clock speed (air)

Xeon Phi 7120P
1.24 GHz
Opteron 6380
2.93 GHz

overclocked clock speed (water)

Xeon Phi 7120P
1.24 GHz
Opteron 6380
2.5 GHz

Specifications Full list of technical specs

summary

Xeon Phi 7120P  vs
Opteron 6380 
Clock speed 1.24 GHz 2.5 GHz
Turbo clock speed 1.33 GHz 3.4 GHz
Cores 61 cores 16 core
Socket type
PCI Express x16
G34
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
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 No Yes

power consumption

TDP 300W 115W
Annual home energy cost 72.27 $/year 27.7 $/year
Annual commercial energy cost 262.8 $/year 100.74 $/year
Typical power consumption 243.75W 93.44W

bus

Architecture FSB HyperTransport 3.0

details

Xeon Phi 7120P  vs
Opteron 6380 
Threads 244 16
L2 cache 30.5 MB 16 MB
Manufacture process 22 nm 32 nm
Max CPUs 8 4

overclocking

Overclocked clock speed 1.24 GHz 2.93 GHz
Overclocked clock speed (Water) 1.24 GHz 2.5 GHz
Overclocked clock speed (Air) 1.24 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
GDDR5
Channels Dual Channel Quad Channel
Supports ECC Yes Yes
Intel Xeon Phi 7120P
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AMD Opteron 6380
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