T400 vs Tesla A100

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Primary details

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

Place in the rankingnot rated472
Place by popularitynot in top-100not in top-100
Power efficiencyno data21.48
ArchitectureAmpere (2020−2024)Turing (2018−2022)
GPU code nameGA100TU117
Market segmentWorkstationWorkstation
Release date14 May 2020 (4 years ago)6 May 2021 (3 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 cores7936384
Core clock speed1110 MHz420 MHz
Boost clock speedno data1425 MHz
Number of transistors38,000 million4,700 million
Manufacturing process technology7 nm12 nm
Power consumption (TDP)260 Watt30 Watt
Texture fill rate550.634.20
Floating-point processing power17.62 TFLOPS1.094 TFLOPS
ROPs12816
TMUs49624

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 x16PCIe 3.0 x16
Length267 mmno data
Width2-slot1-slot
Supplementary power connectorsNoneNone

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 typeHBM2eGDDR6
Maximum RAM amount40 GB2 GB
Memory bus width4096 Bit64 Bit
Memory clock speed2400 MHz1250 MHz
Memory bandwidth1,229 GB/s80 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 outputs3x mini-DisplayPort

API compatibility

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

DirectX12 (12_1)12 (12_1)
Shader Modelno data6.6
OpenGL4.64.6
OpenCLno data3.0
Vulkan-1.2
CUDA-7.5

Pros & cons summary


Recency 14 May 2020 6 May 2021
Maximum RAM amount 40 GB 2 GB
Chip lithography 7 nm 12 nm
Power consumption (TDP) 260 Watt 30 Watt

Tesla A100 has a 1900% higher maximum VRAM amount, and a 71.4% more advanced lithography process.

T400, on the other hand, has an age advantage of 11 months, and 766.7% lower power consumption.

We couldn't decide between Tesla A100 and T400. 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 Tesla A100
Tesla A100
NVIDIA T400
T400

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Community ratings

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3.8 381 vote

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Questions & comments

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