AMD · 2025
AMD Instinct MI355X
The AMD Instinct MI355X is a professional graphics card for AI and HPC workloads, released in June 2025.
The AMD Instinct MI355X is a professional graphics card designed for AI and high-performance computing. It is built on the CDNA 4 architecture with a gfx950 GPU chip manufactured on a 3 nm process. The card features 16384 shading units, a base and boost clock of 2400 MHz, and 288 GB of HBM3e memory on an 8192-bit bus, delivering 8000 GB/s memory bandwidth. It has a board power of 1400 W and connects via PCIe 5.0×16 (OAM). The MI355X is intended for use in server environments, often paired with other AMD Instinct accelerators or EPYC CPUs.
Specifications
| Architecture unverified | CDNA 4 |
|---|---|
| GPU chip unverified | gfx950 |
| Process node unverified | 3 nm |
| Shading units unverified | 16384 |
| Base clock unverified | 2400 MHz |
| Boost clock unverified | 2400 MHz |
| Memory size unverified | 288 GB |
| Memory type unverified | HBM3e |
| Memory bus unverified | 8192 bit |
| Memory bandwidth unverified | 8000 GB/s |
| Board power (TDP) unverified | 1400 W |
| Bus interface unverified | PCIe 5.0×16 (OAM) |
| Release date unverified | 2025-06-12 |
| Release year unverified | 2025 |