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Differences What are the advantages of each

Front view of AMD Athlon II X2 250

Reasons to consider the
AMD Athlon II X2 250

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark score 1,750 vs 355 Around 5x better PassMark score
Much better PassMark (Single core) score 1,008 vs 543 More than 85% better PassMark (Single core) score
Significantly higher clock speed 3 GHz vs 2.6 GHz More than 15% higher clock speed
Much better overclocked clock speed (Air) 3.72 GHz vs 2.31 GHz More than 60% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.04 GHz vs 1.83 GHz Around 2.2x better overclocked clock speed (Water)
Front view of AMD Athlon 64 X2 2500+

Reasons to consider the
AMD Athlon 64 X2 2500+

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CPUBoss is not aware of any important advantages of the Athlon 64 X2 2500+ vs the Athlon II X2 250.

Benchmarks Real world tests of Athlon II X2 250 vs 64 X2 2500+

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon II X2 250  vs
64 X2 2500+ 
Clock speed 3 GHz 2.6 GHz
Cores Dual core Dual core
Socket type
AM3
462
AM2

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
ABM
CVT16
AMD-V
3DNow!
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 2,000 MHz 333 MHz

details

Athlon II X2 250  vs
64 X2 2500+ 
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.72 GHz 2.31 GHz
Overclocked clock speed (Water) 4.04 GHz 1.83 GHz
PassMark (Overclocked) 2,374.3 294.8
Overclocked clock speed (Air) 3.72 GHz 2.31 GHz

power consumption

Typical power consumption 52.81W N/A
AMD Athlon II X2 250
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AMD Athlon 64 X2 2500+
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