A6-6400B vs A8-7680

Primary details

Comparing A8-7680 and A6-6400B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1825	2444
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	15.78	no data
Market segment	Desktop processor	Desktop processor
Series	AMD A8	no data
Power efficiency	4.69	1.49
Architecture codename	Excavator (2017−2018)	Richland (2013−2014)
Release date	26 October 2018 (6 years ago)	1 June 2013 (11 years ago)
Launch price (MSRP)	$56	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

A8-7680 and A6-6400B basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	2 (Dual-core)
Threads	4	2
Base clock speed	3.5 GHz	3.9 GHz
Boost clock speed	3.8 GHz	4.1 GHz
Multiplier	38	no data
L1 cache	128K (per core)	96K
L2 cache	1 MB (per core)	1 MB (shared)
Chip lithography	28 nm	32 nm
Die size	246 mm2	246 mm2
Maximum case temperature (TCase)	74 °C	70 °C
Number of transistors	1,178 million	1,303 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	+

Compatibility

Information on A8-7680 and A6-6400B compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FM2+	FM2
Power consumption (TDP)	45 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-7680 and A6-6400B. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	-	+
AVX	+	+
PowerNow	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-7680 and A6-6400B are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-7680 and A6-6400B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-1866
Maximum memory size	64 GB	no data
Maximum memory bandwidth	14.936 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Radeon R7 Series

AMD Radeon HD 8470D

Peripherals

Specifications and connection of peripherals supported by A8-7680 and A6-6400B.

PCIe version

no data

2.0

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	2.27	1.04
Recency	26 October 2018	1 June 2013
Physical cores	4	2
Threads	4	2
Chip lithography	28 nm	32 nm
Power consumption (TDP)	45 Watt	65 Watt

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Should you still have questions on choice between A8-7680 and A6-6400B, ask them in Comments section, and we shall answer.

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