H100 CNX and Radeon Instinct MI300X - video card comparison

H100 CNX

Radeon Instinct MI300X

Architecture

Hopper (2022)

CDNA 3.0

GPU code name

GH100

Aqua Vanjaram

Market segment

Desktop

Release date

March 2023

December 2023

Interface

PCIe 5.0 x16

Supplementary power connectors

8-pin EPS

None

Boost clock speed

1845 MHz

2100 MHz

Manufacturing process technology

4 nm

5 nm

Number of transistors

80,000 million

153,000 million

Pipelines / CUDA cores

14592

19456

Power consumption (TDP)

350 Watt

750 Watt

Texture fill rate

841.3

2,554

Memory type

HBM2e

HBM3

Maximum RAM amount

80 GB

192 GB

Memory bus width

5120 Bit

8192 Bit

Memory clock speed

3.2 GB/s

5 GB/s

Memory bandwidth

2,039 GB/s

5,171 GB/s

Display Connectors

No outputs

DirectX

N/A

CUDA

9.0

OpenCL

3.0

OpenGL

N/A

Shader Model

N/A

Vulkan

N/A