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AMD Phenom X3 B77

CPUBoss Winner
Front view of AMD Phenom X3 B77

Differences What are the advantages of each

Front view of AMD Phenom X3 B77

Reasons to consider the
AMD Phenom X3 B77

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Much lower typical power consumption 77.19W vs 113.2W More than 30% lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 39.59 $/year More than 40% lower annual home energy cost
Significantly better overclocked clock speed (Water) 4.4 GHz vs 3.1 GHz More than 40% better overclocked clock speed (Water)
Significantly lower annual commercial energy cost 83.22 $/year vs 113.44 $/year More than 25% lower annual commercial energy cost
Front view of AMD Athlon II X3 450

Reasons to consider the
AMD Athlon II X3 450

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Better overclocked clock speed (Air) 3.86 GHz vs 3.2 GHz More than 20% better overclocked clock speed (Air)
More l3 cache per core 0.17 MB/core vs 0 MB/core Compared to all cpus, 0.17 MB/core l3 cache per core is just OK

Benchmarks Real world tests of Phenom X3 B77 vs Athlon II X3 450

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom X3 B77  vs
Athlon II X3 450 
Clock speed 3.2 GHz 3.2 GHz
Cores Tri core Tri core
Is unlocked No No

features

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

bus

Clock speed 2,000 MHz 100 MHz

details

Phenom X3 B77  vs
Athlon II X3 450 
Threads 3 3
L2 cache 1.5 MB 1.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 0 MB 0.5 MB
L3 cache per core 0 MB/core 0.17 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.2 GHz 3.86 GHz
Overclocked clock speed (Water) 4.4 GHz 3.1 GHz
Overclocked clock speed (Air) 3.2 GHz 3.86 GHz

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 39.59 $/year
Annual commercial energy cost 83.22 $/year 113.44 $/year
Performance per watt 1.38 pt/W 1.07 pt/W
Typical power consumption 77.19W 113.2W
AMD Phenom X3 B77
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AMD Athlon II X3 450
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