NVIDIA B200 vs NVIDIA Rubin CPX
How the NVIDIA B200 and NVIDIA Rubin CPX compare across memory, compute, power and form factor, with the stronger figure highlighted on each row.
| Specification |  BLACKWELL NVIDIA B200 View Product → |  RUBIN NVIDIA Rubin CPX View Product → |
|---|---|---|
| Pricing | ||
| Price | – | – |
| Overview | ||
| Architecture | Blackwell | Rubin (CPX variant) |
| Memory | ||
| Memory | 192 GB HBM3e | HBM4 (capacity per partner configuration) |
| Memory Bandwidth | 8 TB/s | – |
| Compute | ||
| FP32 | ~75 TFLOPS | – |
| FP8 Tensor | ~9 PFLOPS TFLOPS | – |
| FP4 Tensor | ~18 PFLOPS TFLOPS | – |
| Platform | ||
| Interface | Gen5 | – |
| NVLink / Infinity Fabric | 1.8 TB/s (5th Gen) | NVLink 6, PCIe Gen 6 |
| TDP | Up to 1,000W | – |
| Form Factor | SXM | SXM / rack-integrated |
| Transistors | 208 billion | – |
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