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Differences What are the advantages of each

Front view of AMD Athlon II X2 245

Reasons to consider the
AMD Athlon II X2 245

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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 better PassMark score 1,690 vs 1,251 More than 35% better PassMark score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 2.9 GHz vs 2.5 GHz More than 15% higher clock speed
Much better performance per watt 1.73 pt/W vs 1.14 pt/W Around 55% better performance per watt
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 (Air) 3.64 GHz vs 3.18 GHz Around 15% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4 GHz vs 2.5 GHz More than 60% better overclocked clock speed (Water)
Front view of AMD Athlon 64 X2 BE-2450

Reasons to consider the
AMD Athlon 64 X2 BE-2450

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Significantly lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
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

Benchmarks Real world tests of Athlon II X2 245 vs 64 X2 BE-2450

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Athlon II X2 245  vs
64 X2 BE-2450 
Clock speed 2.9 GHz 2.5 GHz
Cores Dual core Dual core
Socket type
AM3
AM2

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

details

Athlon II X2 245  vs
64 X2 BE-2450 
Threads 2 2
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.64 GHz 3.18 GHz
Overclocked clock speed (Water) 4 GHz 2.5 GHz
PassMark (Overclocked) 1,955.2 632.7
Overclocked clock speed (Air) 3.64 GHz 3.18 GHz

power consumption

TDP 65W 45W
Annual home energy cost 15.66 $/year 10.84 $/year
Annual commercial energy cost 56.94 $/year 39.42 $/year
Performance per watt 1.73 pt/W 1.14 pt/W
Typical power consumption 52.81W 36.56W
AMD Athlon II X2 245
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AMD Athlon 64 X2 BE-2450
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