Radeon RX 580X Mobile vs HD 8400

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking1173not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.92no data
ArchitectureGCN 2.0 (2013−2017)GCN 4.0 (2016−2020)
GPU code nameKalindiPolaris 20
Market segmentDesktopLaptop
Release date23 November 2013 (11 years ago)11 April 2018 (6 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores1282304
Core clock speed400 MHz1000 MHz
Boost clock speedno data1077 MHz
Number of transistors1,178 million5,700 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)25 Watt100 Watt
Texture fill rate3.200155.1
Floating-point processing power0.1024 TFLOPS4.963 TFLOPS
ROPs432
TMUs8144

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizeno datalarge
InterfaceIGPMXM-B (3.0)
WidthIGPno data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeSystem SharedGDDR5
Maximum RAM amountSystem Shared8 GB
Memory bus widthSystem Shared256 Bit
Memory clock speedSystem Shared2000 MHz
Memory bandwidthno data256.0 GB/s
Shared memory+-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputsNo outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_0)12 (12_0)
Shader Model6.36.4
OpenGL4.64.6
OpenCL2.02.0
Vulkan1.2.1311.2.131

Pros & cons summary


Recency 23 November 2013 11 April 2018
Chip lithography 28 nm 14 nm
Power consumption (TDP) 25 Watt 100 Watt

HD 8400 has 300% lower power consumption.

RX 580X Mobile, on the other hand, has an age advantage of 4 years, and a 100% more advanced lithography process.

We couldn't decide between Radeon HD 8400 and Radeon RX 580X Mobile. We've got no test results to judge.

Be aware that Radeon HD 8400 is a desktop card while Radeon RX 580X Mobile is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon HD 8400
Radeon HD 8400
AMD Radeon RX 580X Mobile
Radeon RX 580X Mobile

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.8 128 votes

Rate Radeon HD 8400 on a scale of 1 to 5:

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2.7 10 votes

Rate Radeon RX 580X Mobile on a scale of 1 to 5:

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Questions & comments

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