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AMD Instinct MI355X

The higher-power accelerator in AMD's Instinct MI350 Series, built on the CDNA 4 architecture and deployed eight to a platform with direct liquid cooling.

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AMD · Current generationShipping

MI355X

CDNA 4 · Instinct MI350 Series

Memory
288 GB HBM3E
Bandwidth
8 TB/s
Power
1,400 W

Specifications at a glance

As published by AMD, checked 24 September 2026. Configurations vary by system builder.

Form
OAM module; 8 GPUs per platform, up to 128 GPUs per liquid-cooled rack
Cooling
Direct liquid cooling; AMD also offers an air-cooled option
GPU memory
288 GB HBM3E per GPU; 2.3 TB per 8-GPU platform
Memory bandwidth
8 TB/s per GPU
FP4 compute
10.1 PFLOPS MXFP4 per GPU (dense); 80.5 PFLOPS per 8-GPU platform
Interconnect
Fourth-generation Infinity Fabric: 7 links at 153.6 GB/s per GPU; PCIe 5.0 x16
Power
1,400 W total board power
Status
Shipping; launched June 2025
AMD Instinct MI355XMI355X platform brochure

Configuration and site considerations

The MI355X's 1,400 W board power shapes the cooling and rack plan.

  • Direct liquid cooling supports the 1,400 W board power; an air-cooled option exists.
  • Liquid-cooled racks hold up to 128 GPUs.
  • Document the platform, the GPU count and the system builder.

Prepare this system for a financing review

Document the configuration, the supplier and the deployment so the request can be assessed against the actual equipment.**

  • System configuration and quantity

  • Supplier and purchase order

    Or fleet details and ownership information for deployed servers.

  • Deployment site and colocation agreement

  • Power and cooling readiness

  • Customer contract or documented on-demand revenue

Bring the equipment plan to a financing conversation

Discuss GPU financing

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