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Differences What are the advantages of each

Front view of AMD Athlon X2 4450e

Reasons to consider the
AMD Athlon X2 4450e

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Much better overclocked clock speed (Air) 3.01 GHz vs 3 GHz Almost the same
Much better overclocked clock speed (Water) 3.27 GHz vs 2.58 GHz More than 25% better overclocked clock speed (Water)
Front view of AMD Athlon X2 4450B

Reasons to consider the
AMD Athlon X2 4450B

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CPUBoss is not aware of any important advantages of the 4450B vs the 4450e.

Benchmarks Real world tests of Athlon X2 4450e vs 4450B

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Athlon X2 4450e
63,550 MB/s
Athlon X2 4450B
63,200 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon X2 4450e  vs
4450B 
Clock speed 2.3 GHz 2.3 GHz
Cores Dual core Dual core
Socket type
AM2
AM2+
Is unlocked No No

features

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

power consumption

TDP 45W 45W
Annual home energy cost 10.84 $/year 10.84 $/year
Annual commercial energy cost 39.42 $/year 39.42 $/year
Performance per watt 1.56 pt/W 1.58 pt/W
Typical power consumption 36.56W 36.56W

details

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

overclocking

Overclocked clock speed 3.01 GHz 3 GHz
Overclocked clock speed (Water) 3.27 GHz 2.58 GHz
Overclocked clock speed (Air) 3.01 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 Athlon X2 4450e
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AMD Athlon X2 4450B
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