CPUBoss Review Our evaluation of 6400 vs 7850K among all CPUs

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

Sky Diver and Cloud Gate

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?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

8.8

CPUBoss Score

Combination of all six facets

Winner
Intel Core i5 6400 

CPUBoss recommends the Intel Core i5 6400  based on its performance and single-core performance.

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VS

Intel Core i5 6400

CPUBoss Winner
Front view of Intel Core i5 6400

Differences What are the advantages of each

Front view of Intel Core i5 6400

Reasons to consider the
Intel Core i5 6400

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Much newer manufacturing process 14 nm vs 28 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jul, 2015 vs Jan, 2014 Release date over 1 years later
Better PassMark (Single core) score 1,832 vs 1,571 More than 15% better PassMark (Single core) score
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
Significantly higher clock speed 3.7 GHz vs 2.7 GHz More than 35% higher clock speed
Higher turbo clock speed 4 GHz vs 3.3 GHz More than 20% higher turbo clock speed
Much better performance per dollar 5.55 pt/$ vs 1.07 pt/$ Around 5.2x better performance per dollar
Much better performance per watt 9.81 pt/W vs 2.62 pt/W Around 3.8x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Slightly better CompuBench 1.5 T-Rex score 1.44 fps vs 1.16 fps Around 25% better CompuBench 1.5 T-Rex score

Benchmarks Real world tests of Core i5 6400 vs A10 7850K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i5 6400
24.14 mHash/s
A10 7850K
89.37 mHash/s

CompuBench 1.5 (Face detection)

Core i5 6400
19.56 mPixels/s
A10 7850K
18.51 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i5 6400
1.16 fps
A10 7850K
1.44 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 6400
3,989.5
A10 7850K
7,022

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 6400
2,428.5
A10 7850K
2,328

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 6400
155.25 MB/s
A10 7850K
2,370,000 MB/s

PassMark Data courtesy Passmark

Core i5 6400
6,727
A10 7850K
5,498

PassMark (Single Core)

Core i5 6400
1,832
A10 7850K
1,571

Specifications Full list of technical specs

summary

Core i5 6400  vs
A10 7850K 
Clock speed 2.7 GHz 3.7 GHz
Turbo clock speed 3.3 GHz 4 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
SSE4
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
AMD-V
Supplemental SSE3
AES
TBM
AVX 2.0
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-2133
DDR3-1866
DDR3-1600
DDR3L-1600
DDR3-1333
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 34,133.32 MB/s

details

Core i5 6400  vs
A10 7850K 
Architecture x86-64 x86-64
Threads 4 4
Manufacture process 14 nm 28 nm
Max CPUs 1 1
Operating temperature Unknown - 71°C Unknown - 72.4°C

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Radeon™ R7 Series

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 2.62 pt/W 9.81 pt/W
Typical power consumption 52.81W 52.81W
Intel Core i5 6400
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AMD A10 7850K
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