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Differences What are the advantages of each

Front view of AMD A8 3850

Reasons to consider the
AMD A8 3850

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Slightly higher Maximum operating temperature 72.7 °C vs 72.4 °C Almost the same
Front view of AMD A10 7850K

Reasons to consider the
AMD A10 7850K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.7 GHz vs 2.9 GHz Around 30% higher clock speed
Much lower typical power consumption 52.81W vs 107.85W 2x lower typical power consumption
Newer manufacturing process 28 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
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
Newer Jan, 2014 vs Jun, 2011 Release date over 2 years later

Benchmarks Real world tests of A8 3850 vs A10 7850K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

A8 3850
43.84 mHash/s
A10 7850K
89.37 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

A8 3850
0.57 fps
A10 7850K
1.44 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

A8 3850
2,056
A10 7850K
3,374

Sky Diver Data courtesy FutureMark

A8 3850
2,425
A10 7850K
6,222

Cloud Gate Data courtesy FutureMark

A8 3850
4,576
A10 7850K
7,530

GeekBench 3 (Multi-core) Data courtesy Primate Labs

A8 3850
5,262
A10 7850K
7,022

GeekBench 3 (Single core) Data courtesy Primate Labs

A8 3850
1,517
A10 7850K
2,328

GeekBench 3 (AES single core) Data courtesy Primate Labs

A8 3850
121,450 MB/s
A10 7850K
2,370,000 MB/s

Reviews Word on the street

Specifications Full list of technical specs

summary

A8 3850  vs
A10 7850K 
Clock speed 2.9 GHz 3.7 GHz
Turbo clock speed None 4 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
AMD-V
3DNow!
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-2133
DDR3-1866
DDR3-1600
DDR3-1333

details

A8 3850  vs
A10 7850K 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 4 MB 4 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 28 nm
Max CPUs 1 1
Operating temperature Unknown - 72.7°C Unknown - 72.4°C

integrated graphics

GPU GPU GPU
Label Radeon™ HD 6550D Radeon™ R7 Series
Latest DirectX 11.0 11.0

power consumption

TDP 100W 65W
Annual home energy cost 37.95 $/year 15.66 $/year
Annual commercial energy cost 107.75 $/year 56.94 $/year
Performance per watt 1.39 pt/W 9.84 pt/W
Typical power consumption 107.85W 52.81W
AMD A8 3850
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AMD A10 7850K
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