Radeon RX 6400 vs RTX A4 Mobile

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Primary details

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

Place in the rankingnot rated277
Place by popularitynot in top-100100
Cost-effectiveness evaluationno data53.23
Power efficiencyno data25.70
ArchitectureAmpere (2020−2024)RDNA 2.0 (2020−2024)
GPU code nameGA107Navi 24
Market segmentMobile workstationDesktop
Release date12 April 2021 (3 years ago)19 January 2022 (2 years ago)
Launch price (MSRP)no data$159

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores2048768
Core clock speed1297 MHz1923 MHz
Boost clock speed1770 MHz2321 MHz
Number of transistorsno data5,400 million
Manufacturing process technology8 nm6 nm
Power consumption (TDP)no data53 Watt
Texture fill rate113.3111.4
Floating-point processing power7.25 TFLOPS3.565 TFLOPS
ROPs3232
TMUs6448
Tensor Cores64no data
Ray Tracing Cores1612

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).

InterfacePCIe 4.0 x8PCIe 4.0 x4
Widthno data1-slot
Supplementary power connectorsno dataNone

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 typeGDDR6GDDR6
Maximum RAM amount4 GB4 GB
Memory bus width128 Bit64 Bit
Memory clock speed1750 MHz2000 MHz
Memory bandwidth224.0 GB/s128.0 GB/s

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 ConnectorsPortable Device Dependent1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI-+

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.76.7
OpenGL4.64.6
OpenCL3.02.2
Vulkan1.31.3
CUDA8.6-

Pros & cons summary


Recency 12 April 2021 19 January 2022
Chip lithography 8 nm 6 nm

RX 6400 has an age advantage of 9 months, and a 33.3% more advanced lithography process.

We couldn't decide between RTX A4 Mobile and Radeon RX 6400. We've got no test results to judge.

Be aware that RTX A4 Mobile is a mobile workstation card while Radeon RX 6400 is a desktop 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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NVIDIA RTX A4 Mobile
RTX A4 Mobile
AMD Radeon RX 6400
Radeon RX 6400

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Community ratings

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Questions & comments

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