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Differences What are the advantages of each

Front view of Intel Core Solo U1500

Reasons to consider the
Intel Core Solo U1500

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Significantly 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 more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Front view of Intel Atom S1240

Reasons to consider the
Intel Atom S1240

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Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Higher clock speed 1.6 GHz vs 1.33 GHz More than 20% higher clock speed
More threads 4 vs 1 3 more threads
More cores 2 vs 1 Twice as many cores; run more applications at once
Better overclocked clock speed (Air) 1.6 GHz vs 1.33 GHz More than 20% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 1.6 GHz vs 1.33 GHz More than 20% better overclocked clock speed (Water)

Features Key features of the Core Solo U1500  vs Atom S1240 

clock speed

Core Solo U1500
1.33 GHz
Atom S1240
1.6 GHz

L2 cache

overclocked clock speed (air)

Core Solo U1500
1.33 GHz
Atom S1240
1.6 GHz

overclocked clock speed (water)

Core Solo U1500
1.33 GHz
Atom S1240
1.6 GHz

TDP

Specifications Full list of technical specs

summary

Core Solo U1500  vs
Atom S1240 
Clock speed 1.33 GHz 1.6 GHz
Cores Single core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 5.5W 6.1W
Annual home energy cost 1.32 $/year 1.47 $/year
Annual commercial energy cost 4.82 $/year 5.34 $/year
Typical power consumption 4.47W 4.96W

bus

Architecture FSB FSB
Number of links 1 1

details

Core Solo U1500  vs
Atom S1240 
Architecture x86 x86-64
Threads 1 4
L2 cache 2 MB 1 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 65 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.33 GHz 1.6 GHz
Overclocked clock speed (Water) 1.33 GHz 1.6 GHz
Overclocked clock speed (Air) 1.33 GHz 1.6 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

memory controller

Memory controller Built-in Built-in
Supports ECC No Yes
Intel Core Solo U1500
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Intel Atom S1240
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