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Differences What are the advantages of each

Front view of AMD Athlon X2 7550

Reasons to consider the
AMD Athlon X2 7550

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Much more l3 cache 2 MB vs 0 MB Compared to all cpus, 2 MB l3 cache is just OK
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 2.5 GHz vs 2 GHz 25% higher clock speed
Much better PassMark score 1,456 vs 1,003 More than 45% better PassMark score
Much better PassMark (Single core) score 845 vs 675 More than 25% better PassMark (Single core) score
Much more l3 cache per core 1 MB/core vs 0 MB/core Compared to all cpus, 1 MB/core l3 cache per core is just OK
Much higher Maximum operating temperature 73 °C vs 55 °C Around 35% higher Maximum operating temperature
Much better overclocked clock speed (Air) 3.27 GHz vs 2.7 GHz More than 20% better overclocked clock speed (Air)
Newer Dec, 2008 vs May, 2006 Release date over 2 years later
Front view of AMD Athlon X2 3800+

Reasons to consider the
AMD Athlon X2 3800+

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Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Better overclocked clock speed (Water) 2.75 GHz vs 2.5 GHz Around 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Athlon X2 7550 vs 3800+

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 X2 7550
88 MB/s
Athlon X2 3800+
64.55 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon X2 7550  vs
3800+ 
Clock speed 2.5 GHz 2 GHz
Cores Dual core Dual core
Socket type
AM2+
AM2
939
Is unlocked No No

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

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 0.64 pt/W 0.66 pt/W
Typical power consumption 77.19W 52.81W

details

Athlon X2 7550  vs
3800+ 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 2 MB 0 MB
L3 cache per core 1 MB/core 0 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 1
Voltage range 1.05 - 1.32V 1.2 - 1.25V
Operating temperature Unknown - 73°C Unknown - 55°C

overclocking

Overclocked clock speed 3.27 GHz 2.7 GHz
Overclocked clock speed (Water) 2.5 GHz 2.75 GHz
PassMark (Overclocked) 1,789.9 1,578.7
Overclocked clock speed (Air) 3.27 GHz 2.7 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
AMD Athlon X2 7550
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AMD Athlon X2 3800+
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