AMD Radeon Instinct MI355X: specs and benchmarks
Contents
Summary
AMD started Radeon Instinct MI355X sales on 2025. This is a CDNA 4.0 architecture desktop card based on 3 nm manufacturing process and primarily aimed at designers. 288 GB of HBM3e memory clocked at 2 GHz are supplied, and together with 8192 Bit memory interface this creates a bandwidth of 8.19 TB/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 1400 Watt.
Primary details
Some basic facts about Radeon Instinct MI355X: architecture, market segment, release date etc.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Architecture | CDNA 4.0 (2025) | |
| GPU code name | CDNA Next | |
| Market segment | Workstation | |
| Release date | 2025 (recently) |
Detailed specifications
Radeon Instinct MI355X's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon Instinct MI355X's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 16384 | of 24064 (RTX PRO 6000 Blackwell) |
| Core clock speed | 1000 MHz | of 2670 MHz (Arc B580) |
| Boost clock speed | 2400 MHz | of 3599 MHz (Radeon RX 7990 XTX) |
| Number of transistors | 185,000 million | of 185,000 million (Radeon Instinct MI350X) |
| Manufacturing process technology | 3 nm | |
| Power consumption (TDP) | 1400 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 2,457.6 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 78.64 TFLOPS | of 126 (RTX PRO 6000 Blackwell) |
| TMUs | 1024 | of 1280 (Data Center GPU Max NEXT) |
| Tensor Cores | 1024 | of 1216 (Radeon Instinct MI300X) |
Form factor & compatibility
This section provides details about the physical dimensions of Radeon Instinct MI355X 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 MI355X: 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 | HBM3e | |
| Maximum RAM amount | 288 GB | of 288 GB (Radeon Instinct MI325X) |
| Memory bus width | 8192 Bit | |
| Memory clock speed | 2000 MHz | of 16000 GB/s (GeForce RTX 4050 Mobile) |
| Memory bandwidth | 8.19 TB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
Connectivity and outputs
Types and number of video connectors present on Radeon Instinct MI355X. 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 and SDK compatibility
APIs supported by Radeon Instinct MI355X, sometimes including their particular versions.
| DirectX | N/A | |
| Shader Model | N/A | |
| OpenGL | N/A | of 4.6 (GeForce RTX 5090 D) |
| OpenCL | 3.0 | |
| Vulkan | N/A | |
| DLSS | + |
NVIDIA equivalent
According to our data, the closest NVIDIA alternative to Radeon Instinct MI355X is RTX 5880 Ada Generation.
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
