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Differences What are the advantages of each

Front view of AMD Phenom X4 9450e

Reasons to consider the
AMD Phenom X4 9450e

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Much lower typical power consumption 52.81W vs 117.5W 2.2x lower typical power consumption
Much higher Maximum operating temperature 70 °C vs 61 °C Around 15% higher Maximum operating temperature
Much lower annual home energy cost 15.66 $/year vs 46.87 $/year 3x 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 8120

Reasons to consider the
AMD FX 8120

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Much higher clock speed 3.1 GHz vs 2.1 GHz Around 50% higher clock speed
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark (Single core) score 1,214 vs 759 Around 60% better PassMark (Single core) score
Much better overclocked clock speed (Air) 4.47 GHz vs 2.51 GHz Around 80% 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
Much better overclocked clock speed (Water) 4.73 GHz vs 2.1 GHz More than 2.2x better overclocked clock speed (Water)

Benchmarks Real world tests of Phenom X4 9450e vs FX 8120

PassMark Data courtesy Passmark

FX 8120
6,587

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom X4 9450e  vs
FX 8120 
Clock speed 2.1 GHz 3.1 GHz
Cores Quad core Octa core
Socket type
AM2+
AM3+
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
ABM
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 125W
Annual home energy cost 15.66 $/year 46.87 $/year
Annual commercial energy cost 56.94 $/year 109.5 $/year
Performance per watt 1.48 pt/W 7.23 pt/W
Typical power consumption 52.81W 117.5W

details

Phenom X4 9450e  vs
FX 8120 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 2 MB 8 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 2 MB 8 MB
L3 cache per core 0.5 MB/core 1 MB/core
Manufacture process 65 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 61°C

overclocking

Overclocked clock speed 2.51 GHz 4.47 GHz
Overclocked clock speed (Water) 2.1 GHz 4.73 GHz
Overclocked clock speed (Air) 2.51 GHz 4.47 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 1,800 MHz 2,600 MHz
AMD Phenom X4 9450e
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AMD FX 8120
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