AMD Instinct MI355X Platform
AMD's eight-GPU building block, integrating eight fully connected MI355X OAM modules on an industry-standard OCP universal baseboard over fourth-generation Infinity Fabric. AMD publishes the platform totals of 2.3 TB of HBM3E and 64 TB/s of aggregate memory bandwidth, both of which are exactly eight times the per-GPU figures, which is why the precision values here are also eight times AMD's published per-GPU specification rather than a separate platform table, since AMD provides none. Sparse figures appear only for the four datatypes where AMD publishes a structured-sparsity number, which are FP8, FP16, BF16 and INT8; AMD gives no sparsity figure for MXFP4 or MXFP6, so neither does this row. Supported in both air-cooled UBB servers and direct liquid cooled platforms. AMD publishes no platform power figure.
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Systems built on this design
2 configurationsAMD Instinct MI355X Platform is the baseboard. The systems above are OEM implementations of it and share its accelerator performance; they differ in chassis, CPU, memory and cooling.
System Details
GPU Configuration
System Specifications
Precision Performance Breakdown
| Precision | System Performance | Per GPU | Efficiency |
|---|---|---|---|
| 629 TFLOPS | 79 TFLOPS | — | |
| 1,258 TFLOPS | 157 TFLOPS | — | |
| 20,133 TFLOPS | 2,517 TFLOPS | — | |
| 20,133 TFLOPS | 2,517 TFLOPS | — | |
| 40,266 TFLOPS | 5,033 TFLOPS | — | |
| 80,530 TFLOPS | 10,066 TFLOPS | — | |
| 40,266 TOPS | 5,033 TOPS | — | |
| FP6 | 80,530 TFLOPS | 10,066 TFLOPS | — |
Where a vendor states a basis, the figure shown is the dense one, and any figure it publishes is listed separately. Vendors commonly headline the sparse number instead: for NVIDIA's 2:4 structured sparsity that is exactly twice the dense figure, though other vendors' sparse modes do not all follow that ratio.
Powered by AMD Instinct MI355X
This system utilizes 8 × AMD Instinct MI355X OAM GPUs, each delivering exceptional performance for AI and HPC workloads.
Per GPU TDP
1400W
Per GPU Memory
288 GB
Process Node
3nm/6nm
Architecture
CDNA 4
Frequently asked questions
How much does the Instinct MI355X Platform cost?
AMD sells the Instinct MI355X Platform on quote through OEMs and resellers, and nobody rents a whole one by the hour. Renting its 8 Instinct MI355X accelerators separately at the cheapest live rate Flopper tracks, $5.99 per GPU-hour across 1 provider, comes to about $47.92 an hour for the equivalent capacity. Instinct MI355X rental prices →
How much power does the Instinct MI355X Platform require?
AMD has not published a power figure for the Instinct MI355X Platform, and Flopper does not derive one from the accelerator count because the rest of the system draws power too.
How many GPUs are in the Instinct MI355X Platform?
8. The Instinct MI355X Platform carries 8 AMD Instinct MI355X OAM accelerators in a baseboard form factor, and every throughput figure on this page is the total across them. Instinct MI355X specifications →
Documentation & Resources
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Flopper Spec Sheet
AMD Instinct MI355X Platform specifications, generated from our database. Printable.
Vendor product page
AMD Instinct MI355X Platform documentation
AMD Instinct MI455X GPU datasheet (PID 5158303, LE-93204-00 07/26)
AMD • 2026-07-21
Typical Use Cases
The AMD Instinct MI355X Platform runs 8× Instinct MI355X GPUs over 4th Gen AMD Infinity Fabric, eight fully connected OAM modules on an OCP UBB design, delivering 40,266 TFLOPS FP8 dense.