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Differences What are the advantages of each

Front view of AMD Athlon II X3 2.8 GHz

Reasons to consider the
AMD Athlon II X3 2.8 GHz

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More cores 3 vs 2 1 more cores; run more applications at once
More threads 3 vs 2 1 more threads
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 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3 GHz vs 2.8 GHz More than 5% higher clock speed

Features Key features of the Athlon II X3 2.8 GHz  vs X2 250 

clock speed

Specifications Full list of technical specs

summary

Athlon II X3 2.8 GHz  vs
X2 250 
Clock speed 2.8 GHz 3 GHz
Cores Tri core Dual core

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

details

Athlon II X3 2.8 GHz  vs
X2 250 
Threads 3 2
L2 cache 2 MB 2 MB
L2 cache per core 0.67 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1

power consumption

Typical power consumption N/A 52.81W

bus

Clock speed 2,000 MHz 2,000 MHz
AMD Athlon II X3 2.8 GHz
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AMD Athlon II X2 250
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