Radeon Instinct MI300X: specs and benchmarks

Summary

AMD started Radeon Instinct MI300X sales 6 December 2023. This is a CDNA 3.0 architecture desktop card based on 5 nm manufacturing process and primarily aimed at designers. 192 GB of HBM3 memory clocked at 2.53 GHz are supplied, and together with 8192 Bit memory interface this creates a bandwidth of 5,171 GB/s.

Compatibility-wise, this is a oam module graphics card attached via PCIe 5.0 x16 interface. No additional power connector is required, and power consumption is at 750 Watt.

Primary details

Some basic facts about Radeon Instinct MI300X: architecture, market segment, release date etc.

Place in the ranking	not rated
Place by popularity	not in top-100
Architecture	CDNA 3.0 (2023−2024)
GPU code name	Aqua Vanjaram
Market segment	Workstation
Release date	6 December 2023 (1 year ago)

Detailed specifications

Radeon Instinct MI300X's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon Instinct MI300X's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores	19456	of 21760 (GeForce RTX 5090)
Core clock speed	1000 MHz	of 2670 MHz (Arc B580)
Boost clock speed	2100 MHz	of 3599 MHz (Radeon RX 7990 XTX)
Number of transistors	153,000 million	of 208,000 million (B200 SXM 192 GB)
Manufacturing process technology	5 nm	of 3 nm (Arc Graphics 140V)
Power consumption (TDP)	750 Watt	of 2400 Watt (Data Center GPU Max Subsystem)
Texture fill rate	2,554
Floating-point processing power	81.72 TFLOPS	of 109.7 (GeForce RTX 5090)
TMUs	1216	of 1280 (Data Center GPU Max NEXT)
Tensor Cores	1216

Form factor & compatibility

This section provides details about the physical dimensions of Radeon Instinct MI300X and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).

Interface	PCIe 5.0 x16
Width	OAM Module
Supplementary power connectors	None

VRAM capacity and type

Parameters of memory installed on Radeon Instinct MI300X: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.

Memory type	HBM3
Maximum RAM amount	192 GB	of 294912 (Radeon Instinct MI325X)
Memory bus width	8192 Bit
Memory clock speed	2525 MHz	of 20000 (RTX 5000 Ada Generation Mobile)
Memory bandwidth	5,171 GB/s

Connectivity and outputs

Types and number of video connectors present on Radeon Instinct MI300X. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.

Display Connectors

No outputs

API compatibility

APIs supported by Radeon Instinct MI300X, sometimes including their particular versions.

DirectX	N/A
Shader Model	N/A
OpenGL	N/A	of 4.6 (GeForce RTX 4090)
OpenCL	3.0
Vulkan	N/A

Benchmark performance

Synthetic benchmark performance of Radeon Instinct MI300X. The combined score is measured on a 0-100 point scale.

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