NVIDIA H100 SXM vs NVIDIA Rubin CPX
How the NVIDIA H100 SXM and NVIDIA Rubin CPX compare across memory, compute, power and form factor, with the stronger figure highlighted on each row.
| Specification |  HOPPER NVIDIA H100 SXM View Product → |  RUBIN NVIDIA Rubin CPX View Product → |
|---|---|---|
| Pricing | ||
| Price | – | – |
| Overview | ||
| Architecture | Hopper | Rubin (CPX variant) |
| Memory | ||
| Memory | 80 GB HBM3 | HBM4 (capacity per partner configuration) |
| Memory Bandwidth | 3.35 TB/s | – |
| Compute | ||
| FP32 | 67 TFLOPS | – |
| FP64 Tensor | 67 TFLOPS | – |
| TF32 Tensor | 989 TFLOPS | – |
| FP16/BF16 Tensor | 1,979 TFLOPS | – |
| FP8 Tensor | 3,958 TFLOPS | – |
| INT8 Tensor | 3,958 TOPS | – |
| Platform | ||
| Interface | Gen5 128 GB/s | – |
| NVLink / Infinity Fabric | 900 GB/s (4th Gen) | NVLink 6, PCIe Gen 6 |
| TDP | Up to 700W (configurable) | – |
| Form Factor | SXM | SXM / rack-integrated |
| Multi-Instance GPU (MIG) | Up to 7 instances (10GB each) | – |
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