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Differences What are the advantages of each

Front view of AMD FX 4100

Reasons to consider the
AMD FX 4100

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.6 GHz vs 3 GHz More than 20% 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 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much better overclocked clock speed (Air) 4.66 GHz vs 4.07 GHz Around 15% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.99 GHz vs 3 GHz More than 65% better overclocked clock speed (Water)
Front view of AMD Athlon II X2 B24

Reasons to consider the
AMD Athlon II X2 B24

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Significantly higher Maximum operating temperature 74 °C vs 70.5 °C Around 5% higher Maximum operating temperature
Much lower annual home energy cost 15.66 $/year vs 34.18 $/year 2.2x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 114.41 $/year 2x lower annual commercial energy cost

Benchmarks Real world tests of FX 4100 vs Athlon II X2 B24

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

FX 4100  vs
Athlon II X2 B24 
Clock speed 3.6 GHz 3 GHz
Cores Quad core Dual core
Socket type
AM3+
AM3
Is unlocked Yes No

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 95W 65W
Annual home energy cost 34.18 $/year 15.66 $/year
Annual commercial energy cost 114.41 $/year 56.94 $/year
Performance per watt 6.46 pt/W 1.44 pt/W
Typical power consumption N/A 52.81W

bus

Clock speed 3,200 MHz 2,000 MHz

details

FX 4100  vs
Athlon II X2 B24 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 4 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 8 MB 1 MB
L3 cache per core 2 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Voltage range 1.14 - 1.55V 0.85 - 1.43V
Operating temperature Unknown - 70.5°C Unknown - 74°C

overclocking

Overclocked clock speed 4.66 GHz 4.07 GHz
Overclocked clock speed (Water) 4.99 GHz 3 GHz
PassMark (Overclocked) 2,972.7 2,224.1
Overclocked clock speed (Air) 4.66 GHz 4.07 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 FX 4100
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AMD Athlon II X2 B24
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