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Differences What are the advantages of each

Front view of AMD Athlon X4 740

Reasons to consider the
AMD Athlon X4 740

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Much higher clock speed 3.2 GHz vs 1.6 GHz 2x higher clock speed
Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.21 GHz vs 1.6 GHz Around 2.8x better overclocked clock speed (Air)
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 3 GHz vs 1.6 GHz More than 85% better overclocked clock speed (Water)
Front view of AMD Athlon 64 X2 3000+

Reasons to consider the
AMD Athlon 64 X2 3000+

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Much higher Maximum operating temperature 95 °C vs 73 °C More than 30% higher Maximum operating temperature
Much lower typical power consumption 16.25W vs 52.81W 3.2x lower typical power consumption
Much lower annual home energy cost 4.82 $/year vs 15.66 $/year 3.2x lower annual home energy cost
Much lower annual commercial energy cost 17.52 $/year vs 56.94 $/year 3.3x lower annual commercial energy cost

Features Key features of the Athlon X4 740  vs 64 X2 3000+ 

clock speed

L2 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Athlon X4 740  vs
64 X2 3000+ 
Clock speed 3.2 GHz 1.6 GHz
Cores Quad core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
3DNow!
AES

details

Athlon X4 740  vs
64 X2 3000+ 
Threads 4 2
L2 cache 4 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 73°C Unknown - 95°C

overclocking

Overclocked clock speed 4.21 GHz 1.6 GHz
Overclocked clock speed (Water) 3 GHz 1.6 GHz
Overclocked clock speed (Air) 4.21 GHz 1.6 GHz

power consumption

TDP 65W 20W
Annual home energy cost 15.66 $/year 4.82 $/year
Annual commercial energy cost 56.94 $/year 17.52 $/year
Typical power consumption 52.81W 16.25W
AMD Athlon X4 740
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AMD Athlon 64 X2 3000+
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