A6-9400 vs A8-6600K

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Aggregate performance score

A8-6600K
2013
4 cores / 4 threads, 100 Watt
1.89
+10.5%
A6-9400
2019
2 cores / 2 threads, 65 Watt
1.71

A8-6600K outperforms A6-9400 by a moderate 11% based on our aggregate benchmark results.

Primary details

Comparing A8-6600K and A6-9400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking19832053
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.31no data
Market segmentDesktop processorDesktop processor
SeriesAMD A-Series (Desktop)no data
Power efficiency1.792.49
Architecture codenameRichland (2013−2014)Bristol Ridge (2016−2019)
Release date1 June 2013 (11 years ago)16 March 2019 (5 years ago)
Launch price (MSRP)$142no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

A8-6600K and A6-9400 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 cores4 (Quad-Core)2 (Dual-core)
Threads42
Base clock speed3.9 GHz3.4 GHz
Boost clock speed4.2 GHz3.7 GHz
L1 cache192 KB160K
L2 cache4096 KB1 MB (shared)
L3 cache0 KBno data
Chip lithography32 nm28 nm
Die size246 mm2250 mm2
Maximum core temperature74 °Cno data
Maximum case temperature (TCase)74 °Cno data
Number of transistors1,178 million3,100 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on A8-6600K and A6-9400 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 configuration11
SocketFM2AM4
Power consumption (TDP)100 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-6600K and A6-9400. You'll probably need this information if you require some particular technology.

AES-NI++
FMAFMA4+
AVXAVX+
PowerNow+-
PowerGating+-
VirusProtect+-

Virtualization technologies

Virtual machine speed-up technologies supported by A8-6600K and A6-9400 are enumerated here.

AMD-V++
IOMMU 2.0+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-6600K and A6-9400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1866DDR4-2400
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 8570DRadeon R5
จำนวนพาธไลน์256no data
Enduro+-
Switchable graphics+-
UVD+-
VCE+-

Graphics interfaces

Available interfaces and connections of A8-6600K and A6-9400 integrated GPUs.

DisplayPort+-
HDMI+-

Graphics API support

APIs supported by A8-6600K and A6-9400 integrated GPUs, sometimes API versions are included.

DirectXDirectX® 11no data

Peripherals

Specifications and connection of peripherals supported by A8-6600K and A6-9400.

PCIe version2.03.0
PCI Express lanesno data8

Synthetic benchmark performance

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


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.

A8-6600K 1.89
+10.5%
A6-9400 1.71

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

A8-6600K 2998
+10.3%
A6-9400 2717

Gaming performance

Pros & cons summary


Performance score 1.89 1.71
Recency 1 June 2013 16 March 2019
Physical cores 4 2
Threads 4 2
Chip lithography 32 nm 28 nm
Power consumption (TDP) 100 Watt 65 Watt

A8-6600K has a 10.5% higher aggregate performance score, and 100% more physical cores and 100% more threads.

A6-9400, on the other hand, has an age advantage of 5 years, a 14.3% more advanced lithography process, and 53.8% lower power consumption.

The A8-6600K is our recommended choice as it beats the A6-9400 in performance tests.


Should you still have questions on choice between A8-6600K and A6-9400, ask them in Comments section, and we shall answer.

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AMD A8-6600K
A8-6600K
AMD A6-9400
A6-9400

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.9 451 vote

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2.7 26 votes

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Questions & comments

Here you can ask a question about A8-6600K or A6-9400, agree or disagree with our judgements, or report an error or mismatch.