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Front view of Intel Core M 5Y10a

Intel Core M 5Y10a

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much more l2 cache 6 MB vs 0.5 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3 GHz vs 0.8 GHz 3.8x higher clock speed
Much more l2 cache per core 3 MB/core vs 0.25 MB/core 12x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 0.8 GHz More than 5.2x better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better PassMark (Single core) score 1,251 vs 821 More than 50% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.23 GHz vs 0.8 GHz More than 5.2x better overclocked clock speed (Water)
Slightly better geekbench 3 Multi-Core score 2,982 vs 2,507 Around 20% better geekbench 3 Multi-Core score
Front view of Intel Core M 5Y10a

Reasons to consider the
Intel Core M 5Y10a

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Much newer manufacturing process 14 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 3.66W vs 52.81W 14.4x lower typical power consumption
Much better performance per watt 16.43 pt/W vs 1.83 pt/W Around 9x better performance per watt
Newer Jul, 2014 vs Jan, 2008 Release date over 6 years later
Much lower annual home energy cost 1.08 $/year vs 15.66 $/year 14.4x lower annual home energy cost
Much lower annual commercial energy cost 3.94 $/year vs 56.94 $/year 14.4x lower annual commercial energy cost
More threads 4 vs 2 Twice as many threads

Benchmarks Real world tests of Core2 Duo E8400 vs Core M 5Y10a

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

Core2 Duo E8400
128,000 MB/s
Core M 5Y10a
2,715 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Core M 5Y10a 
Clock speed 3 GHz 0.8 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 4.5W
Annual home energy cost 15.66 $/year 1.08 $/year
Annual commercial energy cost 56.94 $/year 3.94 $/year
Performance per watt 1.83 pt/W 16.43 pt/W
Typical power consumption 52.81W 3.66W

details

Core2 Duo E8400  vs
Core M 5Y10a 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 0.5 MB
L2 cache per core 3 MB/core 0.25 MB/core
Manufacture process 45 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.22 GHz 0.8 GHz
Overclocked clock speed (Water) 4.23 GHz 0.8 GHz
Overclocked clock speed (Air) 4.22 GHz 0.8 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 5300
Number of displays supported N/A 3
GPU clock speed N/A 100 MHz
Turbo clock speed N/A 800 MHz

bus

Architecture FSB FSB
Number of links 1 1
Intel Core2 Duo E8400
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Intel Core M 5Y10a
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