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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 3280

Reasons to consider the
AMD Opteron 3280

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Much lower typical power consumption 52.81W vs 101.56W Around 50% lower typical power consumption
Better performance per watt 10.33 pt/W vs 7.79 pt/W Around 35% better performance per watt
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 2.4 GHz More than 45% higher clock speed
Higher turbo clock speed 4 GHz vs 3.4 GHz Around 20% higher turbo clock speed
Much better overclocked clock speed (Air) 4.56 GHz vs 2.87 GHz Around 60% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,402 vs 875 More than 60% better PassMark (Single core) score
Better PassMark score 8,183 vs 5,330 Around 55% better PassMark score
Much better overclocked clock speed (Water) 4.75 GHz vs 2.4 GHz Around 2x better overclocked clock speed (Water)
Newer Oct, 2012 vs Mar, 2012 Release date 7 months later

Benchmarks Real world tests of Opteron 3280 vs FX 8320

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Opteron 3280
2,986
FX 8320
10,352

GeekBench 3 (Single core) Data courtesy Primate Labs

FX 8320
2,066

GeekBench 3 (AES single core) Data courtesy Primate Labs

Opteron 3280
1,710,000 MB/s
FX 8320
2,320,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Opteron 3280
7,233
FX 8320
9,798

GeekBench

Opteron 3280
7,233
FX 8320
11,631

PassMark Data courtesy Passmark

Opteron 3280
5,330
FX 8320
8,183

PassMark (Single Core)

FX 8320
1,402

Specifications Full list of technical specs

summary

Opteron 3280  vs
FX 8320 
Clock speed 2.4 GHz 3.5 GHz
Turbo clock speed 3.4 GHz 4 GHz
Cores Octa core Octa core
Socket type
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
SSE4
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM

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 10.33 pt/W 7.79 pt/W
Typical power consumption 52.81W 101.56W

bus

Clock speed 2,600 MHz 2,600 MHz

details

Opteron 3280  vs
FX 8320 
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
Clock multiplier 12 20
Operating temperature Unknown - 61.1°C Unknown - 61.1°C

overclocking

Overclocked clock speed 2.87 GHz 4.56 GHz
Overclocked clock speed (Water) 2.4 GHz 4.75 GHz
Overclocked clock speed (Air) 2.87 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3
AMD Opteron 3280
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AMD FX 8320
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