---
title: "AMD Instinct MI355X | Aguasto"
description: "Manufacturer reference for AMD Instinct MI355X: CDNA 4, individual accelerator, with sourced specifications, variant boundaries and deployment considerations."
canonical: "https://www.aguasto.com/gpus/mi355x"
last-updated: "2026-10-12"
---

# AMD Instinct MI355X | Aguasto

Canonical HTML: [AMD Instinct MI355X](https://www.aguasto.com/gpus/mi355x)

> Manufacturer reference for AMD Instinct MI355X: CDNA 4, individual accelerator, with sourced specifications, variant boundaries and deployment considerations.

[Aguasto](https://www.aguasto.com/) [GPU Library](https://www.aguasto.com/gpus)  AMD Instinct MI355X

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AMD / Individual accelerator

## AMD Instinct MI355X

Launched accelerator with manufacturer-reported deployment/benchmark evidence; supplier stock and Aguasto availability are not verified.

Original Aguasto conceptual illustration. Not manufacturer geometry, an operating Aguasto asset, or a measured benchmark.

Aguasto Research documents third-party hardware, models and software. References do not represent Aguasto inventory, evaluated deployments or available inference services.

### Manufacturer specification reference

Architecture

CDNA 4[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)   · [AMD Instinct GPUs: MLPerf Inference v5.1 (external source)](https://www.amd.com/en/blogs/2025/accelerating-generative-ai-how-instinct-gpus-delivered.html)   · [AMD Instinct MI355X GPU brochure (external source)](https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/product-briefs/amd-instinct-mi355x-gpu-brochure.pdf)

Category

Individual accelerator[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)   · [AMD Instinct GPUs: MLPerf Inference v5.1 (external source)](https://www.amd.com/en/blogs/2025/accelerating-generative-ai-how-instinct-gpus-delivered.html)   · [AMD Instinct MI355X GPU brochure (external source)](https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/product-briefs/amd-instinct-mi355x-gpu-brochure.pdf)

Accelerator memory

288 GBPer OAM accelerator; not the eight-GPU baseboard or host memory.[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

Memory type

HBM3e[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)   · [AMD Instinct GPUs: MLPerf Inference v5.1 (external source)](https://www.amd.com/en/blogs/2025/accelerating-generative-ai-how-instinct-gpus-delivered.html)   · [AMD Instinct MI355X GPU brochure (external source)](https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/product-briefs/amd-instinct-mi355x-gpu-brochure.pdf)

Memory bandwidth

8 TB/sManufacturer peak theoretical GPU memory bandwidth per accelerator.[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

Power

1,400 WManufacturer maximum board-power specification, corroborated by brochure; not measured server draw.[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

Precision formats

FP64, FP32, FP16, BF16, INT8, OCP-FP8, MXFP8, MXFP6, MXFP4[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

Cooling / integration

Manufacturer lists passive and active cooling; verify the actual liquid-cooled/OEM system design.[AMD Instinct MI355X specifications (external source)](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)   · [AMD Instinct GPUs: MLPerf Inference v5.1 (external source)](https://www.amd.com/en/blogs/2025/accelerating-generative-ai-how-instinct-gpus-delivered.html)   · [AMD Instinct MI355X GPU brochure (external source)](https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/product-briefs/amd-instinct-mi355x-gpu-brochure.pdf)

### Configuration boundaries

- Published FLOPS are peak theoretical specifications; they are not model serving benchmarks.

- Microscaling formats and OCP FP8 differ from earlier CDNA FP8 implementations; kernel and checkpoint compatibility must be verified.

### Published arithmetic throughput

Manufacturer peaks, not Aguasto measurements or tokens per second

**Specification**

OCP-FP8 peak compute

**Precision**

OCP-FP8

**Published peak**

5 PFLOPS

**Boundary & source**

Per GPU; manufacturer peak matrix specification without structured-sparsity figure[Manufacturer source ↗](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

**Specification**

MXFP4 peak compute

**Precision**

MXFP4

**Published peak**

10.1 PFLOPS

**Boundary & source**

Per GPU; manufacturer peak microscaling matrix specification[Manufacturer source ↗](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

### Deployment considerations

- Match ROCm, kernel, framework and model versions against the current support matrix.

- Weight-memory estimates exclude KV cache and serving overhead; reserve runtime headroom.

- Check collectives, scale-up topology and model parallelism on the intended OEM system.

#### Software ecosystem

ROCm. Confirm the exact model, runtime release, server integration and vendor support matrix before evaluating a deployment.

### Continue the research

[AMD ROCm](https://www.aguasto.com/inference-stack/rocm) [vLLM](https://www.aguasto.com/inference-stack/vllm) [SGLang](https://www.aguasto.com/inference-stack/sglang) [Model weights versus runtime memory](https://www.aguasto.com/learn/model-weights-and-runtime-memory) [Compare compatible hardware categories](https://www.aguasto.com/gpus/compare) [Why modular infrastructure?](https://www.aguasto.com/why-modular)

### Sources & verification

Reference revision 1 · Reviewed October 12, 2026. Manufacturer claims and documentation are attributed; Aguasto has not run the cited products in production.

- [AMD Instinct MI355X specifications ↗](https://www.amd.com/en/products/accelerators/instinct/mi350/mi355x.html)

Launch date 2025-06-12; CDNA 4 architecture; 288 GB HBM3e; 8 TB/s memory bandwidth; 1400 W module board-power specification; Precision support; Cooling and ROCm ecosystem. Publication: date not stated in the reviewed source. Verified: 2026-10-12.

- [AMD Instinct GPUs: MLPerf Inference v5.1 ↗](https://www.amd.com/en/blogs/2025/accelerating-generative-ai-how-instinct-gpus-delivered.html)

MI300X, MI325X and MI355X launched products with manufacturer-reported deployments or benchmark submissions. Publication: 2025-09-09. Verified: 2026-10-12.

- [AMD Instinct MI355X GPU brochure ↗](https://www.amd.com/content/dam/amd/en/documents/instinct-tech-docs/product-briefs/amd-instinct-mi355x-gpu-brochure.pdf)

Maximum TBP 1400 W. Publication: date not stated in the reviewed source. Verified: 2026-10-12.

### Reference journey

[Compare hardware ↗](https://www.aguasto.com/gpus/compare) [Model Index ↗](https://www.aguasto.com/models) [Serving software ↗](https://www.aguasto.com/inference-stack) [OEM collaboration ↗](https://www.aguasto.com/partners) [Sources & verification ↓](https://www.aguasto.com/gpus/mi355x#sources)

Research reference · No available Aguasto service

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