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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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CPUBoss is not aware of any important advantages of the Phenom X3 B77 vs the FX 4100.

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

Benchmarks Real world tests of Phenom X3 B77 vs FX 4100

PassMark Data courtesy Passmark

FX 4100
4,051

PassMark (Single Core)

FX 4100
1,221

Specifications Full list of technical specs

summary

Phenom X3 B77  vs
FX 4100 
Clock speed 3.2 GHz 3.6 GHz
Turbo clock speed 0 GHz 3.8 GHz
Cores Tri core Quad core
Is unlocked No Yes

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

bus

Clock speed 2,000 MHz 3,200 MHz

details

Phenom X3 B77  vs
FX 4100 
Threads 3 4
L2 cache 1.5 MB 4 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 0 MB 8 MB
L3 cache per core 0 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.2 GHz 4.66 GHz
Overclocked clock speed (Water) 4.4 GHz 4.99 GHz
Overclocked clock speed (Air) 3.2 GHz 4.66 GHz

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 34.18 $/year
Annual commercial energy cost 83.22 $/year 114.41 $/year
Performance per watt 1.38 pt/W 6.46 pt/W
Typical power consumption 77.19W N/A
AMD Phenom X3 B77
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AMD FX 4100
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