Radeon Instinct MI300 vs H800 SXM5

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Primary details

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

Place in performance rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureHopper (2022)CDNA 3.0
GPU code nameGH100Aqua Vanjaram
Market segmentDesktopDesktop
Release date21 March 2023 (1 year ago)4 January 2023 (1 year ago)

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores1689614080
Boost clock speed1755 MHz1700 MHz
Number of transistors80,000 million153,000 million
Manufacturing process technology4 nm5 nm
Power consumption (TDP)700 Watt600 Watt
Texture fill rate926.61,496

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 5.0 x16PCIe 5.0 x16
Lengthno data267 mm
WidthSXM Module2-slot
Supplementary power connectors8-pin EPS2x 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 typeHBM3HBM3
Maximum RAM amount80 GB128 GB
Memory bus width5120 Bit8192 Bit
Memory clock speed2.6 GB/s3.2 GB/s
Memory bandwidth1,681 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectXN/AN/A
Shader ModelN/AN/A
OpenGLN/AN/A
OpenCL3.03.0
VulkanN/AN/A
CUDA9.0no data

Pros & cons summary


Recency 21 March 2023 4 January 2023
Maximum RAM amount 80 GB 128 GB
Chip lithography 4 nm 5 nm
Power consumption (TDP) 700 Watt 600 Watt

We couldn't decide between H800 SXM5 and Radeon Instinct MI300. 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 H800 SXM5
H800 SXM5
AMD Radeon Instinct MI300
Radeon Instinct MI300

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

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.2 5 votes

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4.6 25 votes

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Questions & comments

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