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Differences What are the advantages of each

Front view of AMD Sempron 1250

Reasons to consider the
AMD Sempron 1250

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Significantly lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
Higher Maximum operating temperature 75 °C vs 74 °C Almost the same
Significantly lower annual home energy cost 10.84 $/year vs 15.66 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 56.94 $/year More than 30% lower annual commercial energy cost
Front view of AMD Athlon II X2 245

Reasons to consider the
AMD Athlon II X2 245

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Much more l3 cache 1 MB vs 0 MB Compared to all cpus, 1 MB l3 cache is just OK
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 higher clock speed 2.9 GHz vs 2.2 GHz More than 30% higher clock speed
Much better PassMark score 1,690 vs 540 Around 3.2x better PassMark score
Much better PassMark (Single core) score 974 vs 600 More than 60% better PassMark (Single core) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Much more l3 cache per core 0.5 MB/core vs 0 MB/core Compared to all cpus, 0.5 MB/core l3 cache per core is just OK
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 3.64 GHz vs 3.01 GHz More than 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4 GHz vs 2.74 GHz More than 45% better overclocked clock speed (Water)

Benchmarks Real world tests of Sempron 1250 vs Athlon II X2 245

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 1250
57,250 MB/s
Athlon II X2 245
116,550 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Sempron 1250  vs
Athlon II X2 245 
Clock speed 2.2 GHz 2.9 GHz
Cores Single core Dual core
Socket type
AM2
AM3
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!

power consumption

TDP 45W 65W
Annual home energy cost 10.84 $/year 15.66 $/year
Annual commercial energy cost 39.42 $/year 56.94 $/year
Performance per watt 1.21 pt/W 1.73 pt/W
Typical power consumption 36.56W 52.81W

bus

Clock speed 333 MHz 2,000 MHz

details

Sempron 1250  vs
Athlon II X2 245 
Architecture x86-64 x86-64
Threads 1 2
L2 cache 1 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 0 MB 1 MB
L3 cache per core 0 MB/core 0.5 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 1 1
Operating temperature Unknown - 75°C Unknown - 74°C

overclocking

Overclocked clock speed 3.01 GHz 3.64 GHz
Overclocked clock speed (Water) 2.74 GHz 4 GHz
PassMark (Overclocked) 1,136.7 1,955.2
Overclocked clock speed (Air) 3.01 GHz 3.64 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
AMD Sempron 1250
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AMD Athlon II X2 245
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