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Differences What are the advantages of each

Front view of AMD Sempron 2500+

Reasons to consider the
AMD Sempron 2500+

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Lower typical power consumption 47.94W vs 52.81W Around 10% lower typical power consumption
Lower annual commercial energy cost 51.68 $/year vs 56.94 $/year Around 10% lower annual commercial energy cost
Lower annual home energy cost 14.21 $/year vs 15.66 $/year Around 10% lower annual home energy cost
Front view of AMD Athlon II X2 250

Reasons to consider the
AMD Athlon II X2 250

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Much more l2 cache 2 MB vs 0.25 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 32 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3 GHz vs 1.75 GHz More than 70% higher clock speed
Much better PassMark score 1,750 vs 340 Around 5.2x better PassMark score
Much better PassMark (Single core) score 1,008 vs 464 Around 2.2x better PassMark (Single core) score
Much better overclocked clock speed (Air) 3.72 GHz vs 2.21 GHz Around 70% better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Much better performance per watt 1.79 pt/W vs 0.41 pt/W More than 4.2x better performance per watt
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Significantly higher Maximum operating temperature 74 °C vs 69 °C More than 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.04 GHz vs 1.4 GHz Around 3x better overclocked clock speed (Water)
Newer Jun, 2009 vs Jul, 2004 Release date over 4 years later

Benchmarks Real world tests of Sempron 2500+ 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 2500+
38.7 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 2500+  vs
Athlon II X2 250 
Clock speed 1.75 GHz 3 GHz
Cores Single core Dual core
Socket type
754
462
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 333 MHz 2,000 MHz

details

Sempron 2500+  vs
Athlon II X2 250 
Threads 1 2
L2 cache 0.25 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 130 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 69°C Unknown - 74°C

overclocking

Overclocked clock speed 2.21 GHz 3.72 GHz
Overclocked clock speed (Water) 1.4 GHz 4.04 GHz
Overclocked clock speed (Air) 2.21 GHz 3.72 GHz

power consumption

TDP 59W 65W
Annual home energy cost 14.21 $/year 15.66 $/year
Annual commercial energy cost 51.68 $/year 56.94 $/year
Performance per watt 0.41 pt/W 1.79 pt/W
Typical power consumption 47.94W 52.81W
AMD Sempron 2500+
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AMD Athlon II X2 250
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