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Differences What are the advantages of each

Front view of AMD Phenom II X3 B73

Reasons to consider the
AMD Phenom II X3 B73

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More cores 3 vs 2 1 more cores; run more applications at once
More threads 3 vs 2 1 more threads
Front view of AMD Athlon II X2 B24

Reasons to consider the
AMD Athlon II X2 B24

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Higher clock speed 3 GHz vs 2.8 GHz More than 5% higher clock speed
Much better overclocked clock speed (Air) 4.07 GHz vs 3.42 GHz Around 20% better overclocked clock speed (Air)
Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Higher Maximum operating temperature 74 °C vs 73 °C Almost the same
Better overclocked clock speed (Water) 3 GHz vs 2.8 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Phenom II X3 B73 vs Athlon II X2 B24

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II X3 B73  vs
Athlon II X2 B24 
Clock speed 2.8 GHz 3 GHz
Cores Tri core Dual core
Socket type
AM3
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 1.33 pt/W 1.44 pt/W
Typical power consumption 77.19W 52.81W

details

Phenom II X3 B73  vs
Athlon II X2 B24 
Architecture x86-64 x86-64
Threads 3 2
L2 cache 2 MB 2 MB
L2 cache per core 0.67 MB/core 1 MB/core
L3 cache 6 MB 1 MB
L3 cache per core 2 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.8 - 1.43V 0.85 - 1.43V
Operating temperature Unknown - 73°C Unknown - 74°C

overclocking

Overclocked clock speed 3.42 GHz 4.07 GHz
Overclocked clock speed (Water) 2.8 GHz 3 GHz
Overclocked clock speed (Air) 3.42 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

bus

Clock speed 2,000 MHz 2,000 MHz
AMD Phenom II X3 B73
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AMD Athlon II X2 B24
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