H100 SXM5 vs T400 4 GB

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Primary details

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

Place in the ranking453not rated
Place by popularitynot in top-100not in top-100
Power efficiency22.48no data
ArchitectureTuring (2018−2022)Hopper (2022−2023)
GPU code nameTU117GH100
Market segmentWorkstationWorkstation
Release date6 May 2021 (3 years ago)22 March 2022 (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 cores3848448
Core clock speed420 MHz1065 MHz
Boost clock speed1425 MHz1780 MHz
Number of transistors4,700 million80,000 million
Manufacturing process technology12 nm4 nm
Power consumption (TDP)30 Watt700 Watt
Texture fill rate34.20939.8
Floating-point processing power1.094 TFLOPS30.07 TFLOPS
ROPs1624
TMUs24528
Tensor Coresno data528

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 5.0 x16
Width1-slotno data
Supplementary power connectorsNone8-pin EPS

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 typeGDDR6HBM3
Maximum RAM amount4 GB80 GB
Memory bus width64 Bit5120 Bit
Memory clock speed1250 MHz1500 MHz
Memory bandwidth80 GB/s1,920 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
CUDA7.59.0

Pros & cons summary


Recency 6 May 2021 22 March 2022
Maximum RAM amount 4 GB 80 GB
Chip lithography 12 nm 4 nm
Power consumption (TDP) 30 Watt 700 Watt

T400 4 GB has 2233.3% lower power consumption.

H100 SXM5, on the other hand, has an age advantage of 10 months, a 1900% higher maximum VRAM amount, and a 200% more advanced lithography process.

We couldn't decide between T400 4 GB and H100 SXM5. 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 4 GB
T400 4 GB
NVIDIA H100 SXM5
H100 SXM5

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.


4.1 57 votes

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4.2 27 votes

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Questions & comments

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