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Differences What are the advantages of each

Front view of AMD Phenom X4 9850

Reasons to consider the
AMD Phenom X4 9850

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
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 Phenom X4 9850.

Benchmarks Real world tests of Phenom X4 9850 vs X3 B77

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom X4 9850  vs
X3 B77 
Clock speed 2.5 GHz 3.2 GHz
Cores Quad core Tri core
Is unlocked Yes 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 2,000 MHz

details

Phenom X4 9850  vs
X3 B77 
Threads 4 3
L2 cache 2 MB 1.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 2 MB 0 MB
L3 cache per core 0.5 MB/core 0 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.72 GHz 3.2 GHz
Overclocked clock speed (Water) 2.88 GHz 4.4 GHz
Overclocked clock speed (Air) 2.72 GHz 3.2 GHz

power consumption

TDP 125W 95W
Annual home energy cost 30.11 $/year 22.89 $/year
Annual commercial energy cost 109.5 $/year 83.22 $/year
Performance per watt 0.96 pt/W 1.38 pt/W
Typical power consumption 101.56W 77.19W
AMD Phenom X4 9850
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AMD Phenom X3 B77
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