AMD A8 3820

older Released December, 2011

2.8 GHz
Quad core

5.5 Out of 10 CPUBoss Score

	Performance
	Benchmark performance using all cores
A8 3820 5.6 Core i3 3220 6.1 A4 3400 3.7
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

	Single-core Performance
	Individual core benchmark performance
A8 3820 3.8 Core i3 3220 6.5 A4 3400 3.8
PassMark (Single Core), Geekbench 3 Single Core and 1 more

	Integrated Graphics
	Integrated GPU performance for graphics
A8 3820 6.1 Core i3 3220 4.6 A4 3400 5.1
Fire Strike

	Integrated Graphics (OpenCL)
	Integrated GPU performance for parallel computing
A8 3820 n.d. Core i3 3220 4.6 A4 3400 n.d.
CompuBench 1.5 Bitcoin mining and 4 more

	Performance per Watt
	How efficiently does the processor use electricity?
A8 3820 5.1 Core i3 3220 6.4 A4 3400 4.2
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

	Value
	Are you paying a premium for performance?
A8 3820 6.4 Core i3 3220 6.6 A4 3400 n.d.
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

5.5	CPUBoss Score
	Combination of all six facets
A8 3820 5.5 Core i3 3220 6.1 A4 3400 3.9

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

A8 3820
2,285

1,378

2,251

Sky Diver Data courtesy FutureMark

A8 3820
2,380

932

1,259

Cloud Gate Data courtesy FutureMark

A8 3820
4,204

2,594

2,654

GeekBench 3 (Multi-core) Data courtesy Primate Labs

A8 3820
4,151

2,511

5,399

GeekBench 3 (Single core) Data courtesy Primate Labs

A8 3820
1,426

2,501

1,367

GeekBench 3 (AES single core) Data courtesy Primate Labs

A8 3820
116.05 MB/s

173,000 MB/s

112,400 MB/s

PassMark Data courtesy Passmark

A8 3820
3,152

1,595

4,229

PassMark (Single Core)

A8 3820
874

1,764

903

summary

Clock speed	2.8 GHz
Turbo clock speed	2.8 GHz
Cores	Quad core
Is unlocked	No

features

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

integrated graphics

GPU	GPU
Label	Radeon™ HD 6550D
Latest DirectX	11.0
GPU clock speed	600 MHz

memory controller

Memory controller	Built-in
Memory type	DDR3-1866

details

Architecture	x86-64
Threads	4 threads
L2 cache	4 MB
L2 cache per core	1 MB/core
L3 cache	1 MB
L3 cache per core	0.25 MB/core
Manufacture process	32 nm
Transistor count	1,178,000,000
Max CPUs	1
Die size	228 mm²
Voltage range	0.45 - 1.41V
Operating temperature	Unknown - 70.5°C

overclocking

Overclocked clock speed	2.87 GHz
Overclocked clock speed (Water)	2.5 GHz
Overclocked clock speed (Air)	2.87 GHz

power consumption

TDP	65W
Annual home energy cost	15.66 $/year
Annual commercial energy cost	56.94 $/year
Performance per watt	1.91 pt/W
Typical power consumption	52.81W

Report a correction

Intel Core i7 3820

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