Radeon Steam Deck 8CU vs Instinct MI300X

Primary details

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

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	CDNA 3.0	RDNA 2 (2020−2022)
GPU code name	Aqua Vanjaram	RDNA 2 Sephiroth
Market segment	Desktop	Laptop
Release date	6 December 2023 (less than a year ago)	9 November 2023 (less than a 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 cores	19456	512
Boost clock speed	2100 MHz	1900 MHz
Number of transistors	153,000 million	no data
Manufacturing process technology	5 nm	6 nm
Power consumption (TDP)	750 Watt	no data
Texture fill rate	2,554	no data

Form factor & compatibility

Information on Radeon Instinct MI300X and Radeon Steam Deck 8CU compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 5.0 x16	no data
Width	OAM Module	no data
Supplementary power connectors	None	no data

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 type	HBM3	no data
Maximum RAM amount	192 GB	no data
Memory bus width	8192 Bit	no data
Memory clock speed	5 GB/s	no data
Memory bandwidth	5,171 GB/s	no data
Shared memory	no data	-

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 Connectors

No outputs

no data

API compatibility

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

DirectX	N/A	12_1
Shader Model	N/A	no data
OpenGL	N/A	no data
OpenCL	3.0	no data
Vulkan	N/A	no data

Pros & cons summary

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Chip lithography

5 nm

6 nm

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