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Differences What are the advantages of each

Front view of AMD Sempron X2 2100

Reasons to consider the
AMD Sempron X2 2100

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CPUBoss is not aware of any important advantages of the Sempron X2 2100 vs the Athlon II X2 250.

Front view of AMD Athlon II X2 250

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AMD Athlon II X2 250

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Much higher clock speed 3 GHz vs 1.8 GHz More than 65% higher clock speed
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark score 1,750 vs 869 More than 2x better PassMark score
Much better PassMark (Single core) score 1,008 vs 555 More than 80% better PassMark (Single core) score
Much better performance per watt 1.79 pt/W vs 0.6 pt/W Around 3x better performance per watt
Much better overclocked clock speed (Air) 3.72 GHz vs 2.95 GHz More than 25% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 4.04 GHz vs 1.8 GHz Around 2.2x better overclocked clock speed (Water)

Benchmarks Real world tests of Sempron X2 2100 vs Athlon II X2 250

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Sempron X2 2100
49.8 MB/s
Athlon II X2 250
120,700 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Sempron X2 2100  vs
Athlon II X2 250 
Clock speed 1.8 GHz 3 GHz
Cores Dual core Dual core
Socket type
AM2
AM3

features

Has a NX bit 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

bus

Clock speed 800 MHz 2,000 MHz

details

Sempron X2 2100  vs
Athlon II X2 250 
Threads 2 2
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 65 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.95 GHz 3.72 GHz
Overclocked clock speed (Water) 1.8 GHz 4.04 GHz
Overclocked clock speed (Air) 2.95 GHz 3.72 GHz

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 0.6 pt/W 1.79 pt/W
Typical power consumption 52.81W 52.81W
AMD Sempron X2 2100
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AMD Athlon II X2 250
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