H100 SXM5 80 GB vs A100 PCIe

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Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureAmpere (2020−2024)Hopper (2022−2023)
GPU code nameGA100GH100
Market segmentWorkstationWorkstation
Release date22 June 2020 (4 years ago)21 March 2023 (1 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 cores691216896
Core clock speed1410 MHz1590 MHz
Boost clock speedno data1980 MHz
Number of transistors54,200 million80,000 million
Manufacturing process technology7 nm4 nm
Power consumption (TDP)250 Watt700 Watt
Texture fill rate609.11,045
Floating-point processing power19.49 TFLOPS66.91 TFLOPS
ROPs16024
TMUs432528
Tensor Cores432528

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 5.0 x16
Length267 mmno data
Width2-slotSXM Module
Supplementary power connectors1x 8-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 typeHBM2eHBM3
Maximum RAM amount40 GB80 GB
Memory bus width5120 Bit5120 Bit
Memory clock speed1215 MHz1313 MHz
Memory bandwidth1,555 GB/s1,681 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 outputsNo outputs

API compatibility

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

DirectX12 Ultimate (12_2)N/A
Shader Model6.5N/A
OpenGL4.6N/A
OpenCL2.03.0
Vulkan1.2N/A
CUDA8.09.0

Pros & cons summary


Recency 22 June 2020 21 March 2023
Maximum RAM amount 40 GB 80 GB
Chip lithography 7 nm 4 nm
Power consumption (TDP) 250 Watt 700 Watt

A100 PCIe has 180% lower power consumption.

H100 SXM5 80 GB, on the other hand, has an age advantage of 2 years, a 100% higher maximum VRAM amount, and a 75% more advanced lithography process.

We couldn't decide between A100 PCIe and H100 SXM5 80 GB. 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 A100 PCIe
A100 PCIe
NVIDIA H100 SXM5 80 GB
H100 SXM5 80 GB

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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3.5 31 vote

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4.7 3 votes

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Questions & comments

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