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Differences What are the advantages of each

Front view of AMD Phenom X3 8750B

Reasons to consider the
AMD Phenom X3 8750B

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Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 2 MB vs 0.5 MB 4x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better PassMark score 2,077 vs 1,170 Around 80% better PassMark score
More cores 3 vs 2 1 more cores; run more applications at once
More threads 3 vs 2 1 more threads
Much more l2 cache per core 0.67 MB/core vs 0.5 MB/core Around 35% more l2 cache per core
Much more l3 cache per core 0.67 MB/core vs 0.25 MB/core Around 2.8x more l3 cache per core
Higher clock speed 2.4 GHz vs 2.3 GHz Around 5% higher clock speed
Front view of AMD Athlon X2 4450B

Reasons to consider the
AMD Athlon X2 4450B

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Much better performance per watt 1.58 pt/W vs 0.92 pt/W More than 70% better performance per watt
Much lower typical power consumption 36.56W vs 77.19W 2.1x lower typical power consumption
Much higher Maximum operating temperature 78 °C vs 70 °C More than 10% higher Maximum operating temperature
Better overclocked clock speed (Air) 3 GHz vs 2.89 GHz Around 5% better overclocked clock speed (Air)
Much lower annual commercial energy cost 39.42 $/year vs 83.22 $/year 2.1x lower annual commercial energy cost
Much lower annual home energy cost 10.84 $/year vs 22.89 $/year 2.1x lower annual home energy cost
Better overclocked clock speed (Water) 2.58 GHz vs 2.4 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Phenom X3 8750B vs Athlon X2 4450B

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom X3 8750B  vs
Athlon X2 4450B 
Clock speed 2.4 GHz 2.3 GHz
Cores Tri core Dual core
Socket type
AM2+
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 45W
Annual home energy cost 22.89 $/year 10.84 $/year
Annual commercial energy cost 83.22 $/year 39.42 $/year
Performance per watt 0.92 pt/W 1.58 pt/W
Typical power consumption 77.19W 36.56W

details

Phenom X3 8750B  vs
Athlon X2 4450B 
Architecture x86-64 x86-64
Threads 3 2
L2 cache 2 MB 1 MB
L2 cache per core 0.67 MB/core 0.5 MB/core
L3 cache 2 MB 0.5 MB
L3 cache per core 0.67 MB/core 0.25 MB/core
Manufacture process 65 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 78°C

overclocking

Overclocked clock speed 2.89 GHz 3 GHz
Overclocked clock speed (Water) 2.4 GHz 2.58 GHz
Overclocked clock speed (Air) 2.89 GHz 3 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 Phenom X3 8750B
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AMD Athlon X2 4450B
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