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Differences What are the advantages of each

Front view of AMD Opteron 8380

Reasons to consider the
AMD Opteron 8380

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Much lower typical power consumption 60.94W vs 101.56W 40% lower typical power consumption
More l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Much lower annual home energy cost 18.07 $/year vs 30.11 $/year 40% lower annual home energy cost
Much lower annual commercial energy cost 65.7 $/year vs 109.5 $/year 40% lower annual commercial energy cost
Front view of AMD FX 8320

Reasons to consider the
AMD FX 8320

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 3.5 GHz vs 2.5 GHz 40% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 8 vs 4 Twice as many cores; run more applications at once
Much better overclocked clock speed (Air) 4.56 GHz vs 3.11 GHz More than 45% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 8 vs 4 Twice as many threads
Newer Oct, 2012 vs Nov, 2008 Release date over 4 years later
Much better overclocked clock speed (Water) 4.75 GHz vs 2.5 GHz More than 90% better overclocked clock speed (Water)
Higher Maximum operating temperature 61.1 °C vs 55 °C More than 10% higher Maximum operating temperature

Features Key features of the Opteron 8380  vs FX 8320 

clock speed

Opteron 8380
2.5 GHz
FX 8320
3.5 GHz

L2 cache

FX 8320
8 MB

L3 cache

FX 8320
8 MB

overclocked clock speed (air)

Opteron 8380
3.11 GHz
FX 8320
4.56 GHz

overclocked clock speed (water)

Opteron 8380
2.5 GHz
FX 8320
4.75 GHz

TDP

Specifications Full list of technical specs

summary

Opteron 8380  vs
FX 8320 
Clock speed 2.5 GHz 3.5 GHz
Cores Quad core Octa core
Socket type
F
AM3+
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes 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
3DNow!
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 75W 125W
Annual home energy cost 18.07 $/year 30.11 $/year
Annual commercial energy cost 65.7 $/year 109.5 $/year
Typical power consumption 60.94W 101.56W

bus

Clock speed 2,000 MHz 2,600 MHz

details

Opteron 8380  vs
FX 8320 
Threads 4 8
L2 cache 2 MB 8 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 8 1
Clock multiplier 12 20
Voltage range 1.3 - UnknownV 0.8 - 1.43V
Operating temperature 0 - 55°C Unknown - 61.1°C

overclocking

Overclocked clock speed 3.11 GHz 4.56 GHz
Overclocked clock speed (Water) 2.5 GHz 4.75 GHz
Overclocked clock speed (Air) 3.11 GHz 4.56 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
AMD Opteron 8380
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AMD FX 8320
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