CPUBoss Review Our evaluation of 4000 vs 7850K among desktop CPUs (45 to 75W)

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

A4 4000
n.d.
A10 7850K
n.d.
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

A4 4000
n.d.
A10 7850K
n.d.
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

8.8

CPUBoss Score

Combination of all six facets

Winner
AMD A10 7850K 

CPUBoss recommends the AMD A10 7850K  based on its overclocking.

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VS

Differences What are the advantages of each

Front view of AMD A4 4000

Reasons to consider the
AMD A4 4000

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CPUBoss is not aware of any important advantages of the A4 4000 vs the A10 7850K.

Front view of AMD A10 7850K

Reasons to consider the
AMD A10 7850K

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.7 GHz vs 3 GHz Around 25% higher clock speed
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Newer manufacturing process 28 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher Maximum operating temperature 72.4 °C vs 70 °C Around 5% higher Maximum operating temperature
Newer Jan, 2014 vs May, 2013 Release date 8 months later

Benchmarks Real world tests of A4 4000 vs A10 7850K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

A4 4000
20.49 mHash/s
A10 7850K
89.37 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

A4 4000
0.38 fps
A10 7850K
1.44 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

A4 4000
1,875
A10 7850K
3,374

Sky Diver Data courtesy FutureMark

A4 4000
1,282
A10 7850K
6,222

Cloud Gate Data courtesy FutureMark

A4 4000
2,076
A10 7850K
7,530

GeekBench 3 (Multi-core) Data courtesy Primate Labs

A4 4000
2,519
A10 7850K
7,022

GeekBench 3 (Single core) Data courtesy Primate Labs

A4 4000
1,622
A10 7850K
2,328

GeekBench 3 (AES single core) Data courtesy Primate Labs

A4 4000
1,830,000 MB/s
A10 7850K
2,370,000 MB/s

Specifications Full list of technical specs

summary

A4 4000  vs
A10 7850K 
Clock speed 3 GHz 3.7 GHz
Turbo clock speed 3 GHz 4 GHz
Cores Dual core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
ABM
CVT16
AMD-V
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

A4 4000  vs
A10 7850K 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 1 MB 4 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 28 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 72.4°C

integrated graphics

GPU GPU GPU
Label Radeon™ HD 7480D Radeon™ R7 Series
Latest DirectX 11.0 11.0

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 5.4 pt/W 9.84 pt/W
Typical power consumption 52.81W 52.81W
AMD A4 4000
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AMD A10 7850K
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