Flopper.io GPU Comparison Sheet
September 26, 2026
flopper.io/compare/amd-instinct-mi455x-oam-vs-amd-instinct-mi440x-oamAMD Instinct MI455X OAM vs AMD Instinct MI440X OAM
Side by side datacenter GPU specifications from the Flopper.io database.
Overview
| AMD Instinct MI455X OAM | AMD Instinct MI440X OAM | |
|---|---|---|
| FP32 TFLOPS | — | — |
| Memory | 432 GB | — |
| Memory Bandwidth | 23.3 TB/s | — |
| TDP | — | — |
Performance by Precision
| Precision | AMD Instinct MI455X OAM peak TFLOPS (dense) | AMD Instinct MI440X OAM peak TFLOPS (dense) |
|---|---|---|
| FP64 | — | — |
| FP32 | — | — |
| TF32 | — | — |
| BF16 | — | — |
| FP16 | — | — |
| FP8 | 20132.7 | — |
| FP6 | — | — |
| FP4 | 40265.3 | — |
| INT8 | — | — |
Specifications
| AMD Instinct MI455X OAM | AMD Instinct MI440X OAM | |
|---|---|---|
| Architecture | CDNA 5 | CDNA 5 |
| Process Node | — | — |
| Launch Year | 2026 | 2026 |
| Form Factor | OAM | OAM |
| Memory Type | HBM4 | — |
| Interface Width | — | — |
| Interconnect | — | — |
| TDP | — | — |
| FP32 Efficiency | — | — |