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Front view of AMD FX 8320

AMD FX 8320

CPUBoss Winner

Differences What are the advantages of each

Front view of AMD Opteron 3380

Reasons to consider the
AMD Opteron 3380

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Much lower typical power consumption 52.81W vs 101.56W Around 50% lower typical power consumption
Higher Maximum operating temperature 70.3 °C vs 61.1 °C More than 15% higher Maximum operating temperature
Much lower annual home energy cost 15.66 $/year vs 30.11 $/year Around 50% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 109.5 $/year Around 50% lower annual commercial energy cost
Front view of AMD FX 8320

Reasons to consider the
AMD FX 8320

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 3.5 GHz vs 2.6 GHz Around 35% higher clock speed
Higher turbo clock speed 4 GHz vs 3.6 GHz More than 10% higher turbo clock speed
Much better overclocked clock speed (Air) 4.56 GHz vs 2.6 GHz More than 75% better overclocked clock speed (Air)
Much better performance per watt 7.79 pt/W vs 2.92 pt/W Around 2.8x better performance per watt
Better PassMark (Single core) score 1,402 vs 1,055 Around 35% better PassMark (Single core) score
Better PassMark score 8,183 vs 6,384 Around 30% better PassMark score
Much better overclocked clock speed (Water) 4.75 GHz vs 2.6 GHz Around 85% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 3380 vs FX 8320

PassMark Data courtesy Passmark

Opteron 3380
6,384
FX 8320
8,183

PassMark (Single Core)

Opteron 3380
1,055
FX 8320
1,402

Specifications Full list of technical specs

summary

Opteron 3380  vs
FX 8320 
Clock speed 2.6 GHz 3.5 GHz
Turbo clock speed 3.6 GHz 4 GHz
Cores Octa core Octa core
Socket type
C32
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
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 125W
Annual home energy cost 15.66 $/year 30.11 $/year
Annual commercial energy cost 56.94 $/year 109.5 $/year
Performance per watt 2.92 pt/W 7.79 pt/W
Typical power consumption 52.81W 101.56W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 12,800 MB/s 29,866.66 MB/s

details

Opteron 3380  vs
FX 8320 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 8 MB 8 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Die size 315 mm² 319 mm²
Clock multiplier 13 20
Operating temperature Unknown - 70.3°C Unknown - 61.1°C

overclocking

Overclocked clock speed 2.6 GHz 4.56 GHz
Overclocked clock speed (Water) 2.6 GHz 4.75 GHz
Overclocked clock speed (Air) 2.6 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

bus

Clock speed 2,600 MHz 2,600 MHz
AMD Opteron 3380
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AMD FX 8320
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