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Differences What are the advantages of each

Front view of AMD Phenom II X3 700e

Reasons to consider the
AMD Phenom II X3 700e

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Much lower typical power consumption 52.81W vs 107.85W 2x lower typical power consumption
Much more l3 cache per core 2 MB/core vs 0.25 MB/core 8x more l3 cache per core
Much lower annual home energy cost 15.66 $/year vs 37.95 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 107.75 $/year More than 45% lower annual commercial energy cost
Front view of AMD A8 3850

Reasons to consider the
AMD A8 3850

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Much more l2 cache 4 MB vs 0.5 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly higher clock speed 2.9 GHz vs 2.4 GHz More than 20% higher clock speed
Much better PassMark (Single core) score 995 vs 772 Around 30% better PassMark (Single core) score
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 1.39 pt/W vs 1.14 pt/W More than 20% better performance per watt
Much more l2 cache per core 1 MB/core vs 0.17 MB/core More than 6x more l2 cache per core
Better overclocked clock speed (Air) 3.54 GHz vs 3.4 GHz Around 5% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.9 GHz vs 2.4 GHz More than 20% better overclocked clock speed (Water)
Slightly higher Maximum operating temperature 72.7 °C vs 72 °C Almost the same
Newer Jun, 2011 vs Jun, 2009 Release date over 2 years later

Benchmarks Real world tests of Phenom II X3 700e vs A8 3850

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

Phenom II X3 700e
97.1 MB/s
A8 3850
121,450 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II X3 700e  vs
A8 3850 
Clock speed 2.4 GHz 2.9 GHz
Cores Tri core Quad core
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
3DNow!
Supports dynamic frequency scaling Yes Yes

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 6550D
Latest DirectX N/A 11.0
GPU clock speed N/A 600 MHz

details

Phenom II X3 700e  vs
A8 3850 
Architecture x86-64 x86-64
Threads 3 4
L2 cache 0.5 MB 4 MB
L2 cache per core 0.17 MB/core 1 MB/core
L3 cache 6 MB 1 MB
L3 cache per core 2 MB/core 0.25 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1
Voltage range 0.82 - 1.25V 0.91 - 1.41V
Operating temperature Unknown - 72°C Unknown - 72.7°C

overclocking

Overclocked clock speed 3.4 GHz 3.54 GHz
Overclocked clock speed (Water) 2.4 GHz 2.9 GHz
PassMark (Overclocked) 1,825.9 2,465.8
Overclocked clock speed (Air) 3.4 GHz 3.54 GHz

power consumption

TDP 65W 100W
Annual home energy cost 15.66 $/year 37.95 $/year
Annual commercial energy cost 56.94 $/year 107.75 $/year
Performance per watt 1.14 pt/W 1.39 pt/W
Typical power consumption 52.81W 107.85W
AMD Phenom II X3 700e
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AMD A8 3850
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