Athlon II X4 651K vs A6-6400K

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Primary details

Comparing A6-6400K and Athlon II X4 651K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2495not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesAMD A-Series (Desktop)no data
Power efficiency1.37no data
Architecture codenameRichland (2013−2014)Llano (2011−2012)
Release date1 June 2013 (11 years ago)14 November 2011 (12 years ago)

Detailed specifications

A6-6400K and Athlon II X4 651K 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 cores2 (Dual-core)4 (Quad-Core)
Threads24
Base clock speed3.9 GHz3 GHz
Boost clock speed4.1 GHz3 GHz
L1 cache96 KB128 KB (per core)
L2 cache1024 KB1 MB (per core)
L3 cache0 KB0 KB
Chip lithography32 nm32 nm
Die size246 mm2228 mm2
Maximum core temperature70 °Cno data
Maximum case temperature (TCase)70 °Cno data
Number of transistors1,178 million1,178 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on A6-6400K and Athlon II X4 651K 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
SocketFM2FM1
Power consumption (TDP)65 Watt100 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A6-6400K and Athlon II X4 651K. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0no data
AES-NI+-
FMAFMA4-
AVX+-
PowerNow+-
PowerGating+-
VirusProtect+-

Virtualization technologies

Virtual machine speed-up technologies supported by A6-6400K and Athlon II X4 651K are enumerated here.

AMD-V++
IOMMU 2.0+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6-6400K and Athlon II X4 651K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1866DDR3
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 8470Dno data
Number of pipelines192no data
Enduro+-
Switchable graphics+-
UVD+-
VCE+-

Graphics interfaces

Available interfaces and connections of A6-6400K and Athlon II X4 651K integrated GPUs.

DisplayPort+-
HDMI+-

Graphics API support

APIs supported by A6-6400K and Athlon II X4 651K integrated GPUs, sometimes API versions are included.

DirectXDirectX® 11no data

Peripherals

Specifications and connection of peripherals supported by A6-6400K and Athlon II X4 651K.

PCIe version2.0no data

Pros & cons summary


Recency 1 June 2013 14 November 2011
Physical cores 2 4
Threads 2 4
Power consumption (TDP) 65 Watt 100 Watt

A6-6400K has an age advantage of 1 year, and 53.8% lower power consumption.

Athlon II X4 651K, on the other hand, has 100% more physical cores and 100% more threads.

We couldn't decide between A6-6400K and Athlon II X4 651K. We've got no test results to judge.


Should you still have questions on choice between A6-6400K and Athlon II X4 651K, ask them in Comments section, and we shall answer.

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AMD A6-6400K
A6-6400K
AMD Athlon II X4 651K
Athlon II X4 651K

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Community ratings

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Questions & comments

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