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Differences What are the advantages of each

Front view of AMD Phenom II XLT Q54L

Reasons to consider the
AMD Phenom II XLT Q54L

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Much lower typical power consumption 52.81W vs 101.56W Around 50% 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 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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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
Much higher clock speed 3.5 GHz vs 2.2 GHz Around 60% 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
Much better overclocked clock speed (Air) 4.56 GHz vs 2.2 GHz More than 2x better overclocked clock speed (Air)
More cores 8 vs 4 Twice as many cores; run more applications at once
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
Much better overclocked clock speed (Water) 4.75 GHz vs 2.2 GHz Around 2.2x better overclocked clock speed (Water)
Newer Oct, 2012 vs Apr, 2010 Release date over 2 years later

Features Key features of the Phenom II XLT Q54L  vs FX 8320 

clock speed

FX 8320
3.5 GHz

L2 cache

L3 cache

overclocked clock speed (air)

FX 8320
4.56 GHz

overclocked clock speed (water)

FX 8320
4.75 GHz

Specifications Full list of technical specs

summary

Phenom II XLT Q54L  vs
FX 8320 
Clock speed 2.2 GHz 3.5 GHz
Cores Quad core Octa core
Socket type
AM3
AM3+

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

bus

Clock speed 1,800 MHz 2,600 MHz

details

Phenom II XLT Q54L  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 1 1

overclocking

Overclocked clock speed 2.2 GHz 4.56 GHz
Overclocked clock speed (Water) 2.2 GHz 4.75 GHz
Overclocked clock speed (Air) 2.2 GHz 4.56 GHz

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
Typical power consumption 52.81W 101.56W
AMD Phenom II XLT Q54L
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AMD FX 8320
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