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Differences What are the advantages of each

Front view of AMD Athlon 3700+

Reasons to consider the
AMD Athlon 3700+

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Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Front view of AMD A4 3400

Reasons to consider the
AMD A4 3400

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Much newer manufacturing process 32 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache 0.5 MB vs 0 MB Compared to all cpus, 0.5 MB l3 cache is just OK
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better PassMark score 1,595 vs 435 Around 3.8x better PassMark score
Much better PassMark (Single core) score 903 vs 498 More than 80% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,446 vs 761 Around 3.2x better geekbench 2 (32-bit) score
Higher clock speed 2.7 GHz vs 2.4 GHz Around 15% higher clock speed
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Much better performance per watt 1.57 pt/W vs 0.49 pt/W Around 3.2x better performance per watt
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much more l3 cache per core 0.25 MB/core vs 0 MB/core Compared to all cpus, 0.25 MB/core l3 cache per core is just OK
Much better overclocked clock speed (Air) 3.5 GHz vs 2.87 GHz More than 20% better overclocked clock speed (Air)
Significantly lower typical power consumption 52.81W vs 72.31W More than 25% lower typical power consumption
Newer Sep, 2011 vs Jun, 2004 Release date over 7 years later
Higher Maximum operating temperature 71.5 °C vs 70 °C Almost the same
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
Better overclocked clock speed (Water) 2.7 GHz vs 2.4 GHz Around 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Athlon 3700+ vs A4 3400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Athlon 3700+
1,422
A4 3400
2,511

GeekBench 3 (Single core) Data courtesy Primate Labs

Athlon 3700+
1,415
A4 3400
1,367

GeekBench 3 (AES single core) Data courtesy Primate Labs

Athlon 3700+
192.7 MB/s
A4 3400
112,400 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

A4 3400
2,446

GeekBench

Athlon 3700+
1,622
A4 3400
3,423

PassMark Data courtesy Passmark

A4 3400
1,595

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon 3700+  vs
A4 3400 
Clock speed 2.4 GHz 2.7 GHz
Cores Single core Dual core
Socket type
754
939
FM1
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 89W 65W
Annual home energy cost 21.44 $/year 15.66 $/year
Annual commercial energy cost 77.96 $/year 56.94 $/year
Performance per watt 0.49 pt/W 1.57 pt/W
Typical power consumption 72.31W 52.81W

details

Athlon 3700+  vs
A4 3400 
Architecture x86-64 x86-64
Threads 1 2
L2 cache 1 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
L3 cache 0 MB 0.5 MB
L3 cache per core 0 MB/core 0.25 MB/core
Manufacture process 130 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 71.5°C

overclocking

Overclocked clock speed 2.87 GHz 3.5 GHz
Overclocked clock speed (Water) 2.4 GHz 2.7 GHz
PassMark (Overclocked) 978.6 1,356.5
Overclocked clock speed (Air) 2.87 GHz 3.5 GHz

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 6410D
Latest DirectX N/A 11.0
GPU clock speed N/A 600 MHz
AMD Athlon 3700+
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AMD A4 3400
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