AMD A6 7400K vs A4 4000

older Released January, 2014

AMD A6 7400K

3.5 GHz
Dual core
Unlocked

Front view of AMD A6 7400K

6.1 Out of 10

Reasons to buy the AMD A6 7400K

Much higher clock speed

3.5 GHz

Is unlocked

Yes

Note as well that this chip is unlocked, so it is being aimed directly at the budget enthusiast who is willing to overclock this particular APU.

by Josh-Walrath (Aug, 2014)

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older Released May, 2013

AMD A4 4000

3 GHz
Dual core

Front view of AMD A4 4000

2.5 Out of 10

	Performance
	Benchmark performance using all cores
A6 7400K 4.7 A4 4000 2.3 Core i3 3220 6.1
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

	Single-core Performance
	Individual core benchmark performance
A6 7400K 5.1 A4 4000 4.0 Core i3 3220 6.1
PassMark (Single Core), Geekbench 3 Single Core and 1 more

	Integrated Graphics
	Integrated GPU performance for graphics
A6 7400K 7.8 A4 4000 4.8 Core i3 3220 4.4
Fire Strike

	Integrated Graphics (OpenCL)
	Integrated GPU performance for parallel computing
A6 7400K 7.9 A4 4000 6.0 Core i3 3220 4.5
CompuBench 1.5 Bitcoin mining and 4 more

	Performance per Watt
	How efficiently does the processor use electricity?
A6 7400K 4.8 A4 4000 2.3 Core i3 3220 4.6
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

	Value
	Are you paying a premium for performance?
A6 7400K n.d. A4 4000 n.d. Core i3 3220 0.0
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

6.1	CPUBoss Score
	Combination of all six facets
A6 7400K 6.1 A4 4000 2.5 Core i3 3220 3.2

Winner
AMD A6 7400K

CPUBoss recommends the AMD A6 7400K based on its overclocking.

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AMD A6 7400K

Front view of AMD A6 7400K

Front view of AMD A4 4000

AMD A4 4000

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Front view of AMD A6 7400K

Reasons to consider the
AMD A6 7400K

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Much higher clock speed

3.5 GHz

vs

3 GHz

More than 15% higher clock speed

Is unlocked

Yes

vs

No

Somewhat common; An unlocked multiplier allows for easier overclocking

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 A6 7400K.

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

46.97 mHash/s

20.49 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

0.83 fps

0.38 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

2,590

1,875

Sky Diver Data courtesy FutureMark

3,153

1,282

Cloud Gate Data courtesy FutureMark

3,420

2,076

GeekBench 3 (Multi-core) Data courtesy Primate Labs

3,180

2,519

GeekBench 3 (Single core) Data courtesy Primate Labs

2,081

1,622

GeekBench 3 (AES single core) Data courtesy Primate Labs

1,910 MB/s

1,830,000 MB/s

summary	A6 7400K	vs	A4 4000
Clock speed	3.5 GHz		3 GHz
Cores	Dual core		Dual core
Is unlocked	Yes		No
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
DDR3-1866
DDR3-1333

details	A6 7400K	vs	A4 4000
Architecture	x86-64		x86-64
Threads	2		2
L2 cache	1 MB		1 MB
L2 cache per core	0.5 MB/core		0.5 MB/core
Manufacture process	28 nm		32 nm
Max CPUs	1		1
Operating temperature	Unknown - 70°C		Unknown - 70°C
integrated graphics
GPU	GPU		GPU
Label	Radeon R5 series		Radeon™ HD 7480D
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	2.8 pt/W		5.4 pt/W
Typical power consumption	52.81W		52.81W

AMD A6 7400K

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AMD A4 4000

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