RTX A400 vs Radeon Instinct MI6

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Primary details

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

Place in the rankingnot rated389
Place by popularitynot in top-100not in top-100
Power efficiencyno data17.85
ArchitectureGCN 4.0 (2016−2020)Ampere (2020−2024)
GPU code nameEllesmereGA107
Market segmentWorkstationWorkstation
Release date12 December 2016 (8 years ago)16 April 2024 (less than a year 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 cores2304768
Core clock speed1120 MHz727 MHz
Boost clock speed1233 MHz1762 MHz
Number of transistors5,700 million8,700 million
Manufacturing process technology14 nm8 nm
Power consumption (TDP)150 Watt50 Watt
Texture fill rate177.642.29
Floating-point processing power5.682 TFLOPS2.706 TFLOPS
ROPs3216
TMUs14424
Tensor Coresno data24
Ray Tracing Coresno data6

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 3.0 x16PCIe 4.0 x8
Length241 mm163 mm
Width1-slot1-slot
Supplementary power connectors1x 6-pinNone

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 typeGDDR5GDDR6
Maximum RAM amount8 GB4 GB
Memory bus width256 Bit64 Bit
Memory clock speed1750 MHz1500 MHz
Memory bandwidth224.0 GB/s96 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 ConnectorsNo outputs4x mini-DisplayPort 1.4a

API compatibility

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

DirectX12 (12_0)12 Ultimate (12_2)
Shader Model6.46.7
OpenGL4.64.6
OpenCL2.03.0
Vulkan1.2.1311.3
CUDA-8.6

Pros & cons summary


Recency 12 December 2016 16 April 2024
Maximum RAM amount 8 GB 4 GB
Chip lithography 14 nm 8 nm
Power consumption (TDP) 150 Watt 50 Watt

Instinct MI6 has a 100% higher maximum VRAM amount.

RTX A400, on the other hand, has an age advantage of 7 years, a 75% more advanced lithography process, and 200% lower power consumption.

We couldn't decide between Radeon Instinct MI6 and RTX A400. We've got no test results to judge.


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 Instinct MI6
Radeon Instinct MI6
NVIDIA RTX A400
RTX A400

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Community ratings

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