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Differences What are the advantages of each

Front view of Intel Core i7 3540M

Reasons to consider the
Intel Core i7 3540M

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Much newer manufacturing process 22 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 3 GHz vs 1.8 GHz More than 65% higher clock speed
Much better performance per watt 25.32 pt/W vs 0.85 pt/W Around 29.8x better performance per watt
Much better geekbench 3 single core score 2,951 vs 705 Around 4.2x better geekbench 3 single core score
Much better geekbench 3 Multi-Core score 6,134 vs 1,295 Around 4.8x better geekbench 3 Multi-Core score
Much higher Maximum operating temperature 105 °C vs 78 °C Around 35% higher Maximum operating temperature
Significantly better overclocked clock speed (Air) 3.56 GHz vs 2.25 GHz Around 60% better overclocked clock speed (Air)
More threads 4 vs 2 Twice as many threads
Significantly better overclocked clock speed (Water) 3 GHz vs 1.8 GHz More than 65% better overclocked clock speed (Water)
Front view of AMD Athlon 64 X2 3400+

Reasons to consider the
AMD Athlon 64 X2 3400+

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CPUBoss is not aware of any important advantages of the AMD Athlon 64 X2 3400+ vs the Intel Core i7 3540M.

Benchmarks Real world tests of Core i7 3540M vs Athlon 64 X2 3400+

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

Core i7 3540M
2,455,000 MB/s
Athlon 64 X2 3400+
48.7 MB/s

Specifications Full list of technical specs

summary

Core i7 3540M  vs
Athlon 64 X2 3400+ 
Clock speed 3 GHz 1.8 GHz
Cores Dual core Dual core
Socket type
BGA 1023
rPGA 988B
AM2

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

details

Core i7 3540M  vs
Athlon 64 X2 3400+ 
Threads 4 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 105°C Unknown - 78°C

overclocking

Overclocked clock speed 3.56 GHz 2.25 GHz
Overclocked clock speed (Water) 3 GHz 1.8 GHz
PassMark (Overclocked) 1,998.1 1,253.7
Overclocked clock speed (Air) 3.56 GHz 2.25 GHz

power consumption

TDP 35W 35W
Annual home energy cost 8.43 $/year 8.43 $/year
Annual commercial energy cost 30.66 $/year 30.66 $/year
Performance per watt 25.32 pt/W 0.85 pt/W
Typical power consumption 28.44W 28.44W
Intel Core i7 3540M
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AMD Athlon 64 X2 3400+
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