Radeon Instinct MI250X vs T400

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Primary details

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

Place in the ranking466not rated
Place by popularitynot in top-100not in top-100
Power efficiency21.74no data
ArchitectureTuring (2018−2022)CDNA 2.0 (2021)
GPU code nameTU117Aldebaran
Market segmentWorkstationWorkstation
Release date6 May 2021 (3 years ago)8 November 2021 (2 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 cores38414080
Core clock speed420 MHz1000 MHz
Boost clock speed1425 MHz1700 MHz
Number of transistors4,700 million58,200 million
Manufacturing process technology12 nm6 nm
Power consumption (TDP)30 Watt500 Watt
Texture fill rate34.201,496
Floating-point processing power1.094 TFLOPS47.87 TFLOPS
ROPs16no data
TMUs24880

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 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectorsNone2x 8-pin

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 typeGDDR6HBM2e
Maximum RAM amount2 GB128 GB
Memory bus width64 Bit8192 Bit
Memory clock speed1250 MHz1600 MHz
Memory bandwidth80 GB/s3,277 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 Connectors3x mini-DisplayPortNo outputs

API compatibility

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

DirectX12 (12_1)N/A
Shader Model6.6N/A
OpenGL4.6N/A
OpenCL3.03.0
Vulkan1.2N/A
CUDA7.5-

Pros & cons summary


Recency 6 May 2021 8 November 2021
Maximum RAM amount 2 GB 128 GB
Chip lithography 12 nm 6 nm
Power consumption (TDP) 30 Watt 500 Watt

T400 has 1566.7% lower power consumption.

Instinct MI250X, on the other hand, has an age advantage of 6 months, a 6300% higher maximum VRAM amount, and a 100% more advanced lithography process.

We couldn't decide between T400 and Radeon Instinct MI250X. 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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NVIDIA T400
T400
AMD Radeon Instinct MI250X
Radeon Instinct MI250X

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.


3.8 375 votes

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3.5 123 votes

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Questions & comments

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