Radeon Steam Deck 8CU vs Instinct MI300X

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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
ArchitectureCDNA 3.0 (2023−2024)RDNA 2 (2022−2023)
GPU code nameAqua VanjaramRDNA 2 Sephiroth
Market segmentWorkstationLaptop
Release date6 December 2023 (less than a year ago)9 November 2023 (less than a 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 cores19456512
Core clock speed1000 MHzno data
Boost clock speed2100 MHz1900 MHz
Number of transistors153,000 millionno data
Manufacturing process technology5 nm6 nm
Power consumption (TDP)750 Wattno data
Texture fill rate2,554no data
Floating-point processing power81.72 TFLOPSno data
TMUs1216no data
Tensor Cores1216no data

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 x16no data
WidthOAM Moduleno data
Supplementary power connectorsNoneno 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 typeHBM3no data
Maximum RAM amount192 GBno data
Memory bus width8192 Bitno data
Memory clock speed2525 MHzno data
Memory bandwidth5,171 GB/sno data
Shared memory--

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 data

API compatibility

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

DirectXN/A12_1
Shader ModelN/Ano data
OpenGLN/Ano data
OpenCL3.0no data
VulkanN/A-

Pros & cons summary


Chip lithography 5 nm 6 nm

Instinct MI300X has a 20% more advanced lithography process.

We couldn't decide between Radeon Instinct MI300X and Radeon Steam Deck 8CU. We've got no test results to judge.

Be aware that Radeon Instinct MI300X is a workstation card while Radeon Steam Deck 8CU is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon Instinct MI300X
Radeon Instinct MI300X
AMD Radeon Steam Deck 8CU
Radeon Steam Deck 8CU

Comparisons with similar GPUs

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Community ratings

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3.4 57 votes

Rate Radeon Instinct MI300X on a scale of 1 to 5:

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5 2 votes

Rate Radeon Steam Deck 8CU on a scale of 1 to 5:

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Questions & comments

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