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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 newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark (Single core) score 974 vs 779 More than 25% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,630 vs 1,857 More than 40% better geekbench 2 (32-bit) score
Higher clock speed 2.9 GHz vs 2.6 GHz More than 10% higher clock speed
Much better performance per watt 1.73 pt/W vs 0.61 pt/W More than 2.8x 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 3.13 GHz More than 15% better overclocked clock speed (Air)
Significantly lower typical power consumption 52.81W vs 72.31W More than 25% lower typical power consumption
Significantly higher Maximum operating temperature 74 °C vs 70 °C More than 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4 GHz vs 3.39 GHz Around 20% better overclocked clock speed (Water)
Significantly lower annual home energy cost 15.66 $/year vs 21.44 $/year More than 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 77.96 $/year More than 25% lower annual commercial energy cost
Newer Jul, 2009 vs Dec, 2006 Release date over 2 years later
Front view of AMD Athlon 64 X2 5000+

Reasons to consider the
AMD Athlon 64 X2 5000+

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking

Benchmarks Real world tests of Athlon II X2 245 vs 64 X2 5000+

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

Athlon II X2 245
116,550 MB/s
Athlon 64 X2 5000+
64.85 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon II X2 245  vs
64 X2 5000+ 
Clock speed 2.9 GHz 2.6 GHz
Cores Dual core Dual core
Socket type
AM3
AM2
Is unlocked No Yes

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 5000+ 
Threads 2 2
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 74°C Unknown - 70°C

overclocking

Overclocked clock speed 3.64 GHz 3.13 GHz
Overclocked clock speed (Water) 4 GHz 3.39 GHz
PassMark (Overclocked) 1,955.2 1,518.5
Overclocked clock speed (Air) 3.64 GHz 3.13 GHz

power consumption

TDP 65W 89W
Annual home energy cost 15.66 $/year 21.44 $/year
Annual commercial energy cost 56.94 $/year 77.96 $/year
Performance per watt 1.73 pt/W 0.61 pt/W
Typical power consumption 52.81W 72.31W
AMD Athlon II X2 245
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AMD Athlon 64 X2 5000+
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