FX-4120 vs A8-3870K

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Primary details

Comparing A8-3870K and FX-4120 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2175not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.39no data
Architecture codenameLlano (2011−2012)Zambezi (2011−2012)
Release date20 December 2011 (13 years ago)23 October 2012 (12 years ago)

Detailed specifications

A8-3870K and FX-4120 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)4 (Quad-Core)
Threads44
Base clock speed3 GHz3.9 GHz
Boost clock speed3 GHz4.1 GHz
L1 cache128 KB (per core)192 KB
L2 cache1 MB (per core)4 MB
L3 cache0 KB8 MB (shared)
Chip lithography32 nm32 nm
Die size228 mm2315 mm2
Number of transistors1,178 million1,200 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier++

Compatibility

Information on A8-3870K and FX-4120 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
SocketFM1AM3+
Power consumption (TDP)100 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-3870K and FX-4120. You'll probably need this information if you require some particular technology.

AES-NI-+
FMA-+
AVX-+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-3870K and FX-4120 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-3870K and FX-4120. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 6550Dno data

Peripherals

Specifications and connection of peripherals supported by A8-3870K and FX-4120.

PCIe versionno data2.0

Pros & cons summary


Recency 20 December 2011 23 October 2012
Power consumption (TDP) 100 Watt 95 Watt

FX-4120 has an age advantage of 10 months, and 5.3% lower power consumption.

We couldn't decide between A8-3870K and FX-4120. We've got no test results to judge.


Should you still have questions on choice between A8-3870K and FX-4120, ask them in Comments section, and we shall answer.

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AMD A8-3870K
A8-3870K
AMD FX-4120
FX-4120

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Community ratings

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


4.1 214 votes

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2.3 3 votes

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Questions & comments

Here you can ask a question about A8-3870K or FX-4120, agree or disagree with our judgements, or report an error or mismatch.