The Jetson Orin Nano 4GB moves from the Maxwell GPU architecture to Ampere. It has 6 CPU cores instead of 4. In normal mode its memory bandwidth is 34 GB/s, compared with 25.6 GB/s on the Jetson Nano.
Jetson Nano vs. Jetson Orin Nano 4GB (normal mode) developer... +1developer.nvidia.com ↗“Entry Maxwell SoM; 472 GFLOPS FP16, 128 CUDA cores, 4-core Cortex-A57, 4GB LPDDR4 (25.6 GB/s)”nvidia.com ↗“Entry Ampere SoM; up to 34 INT8 TOPS (Super mode), 512 CUDA + 16 Tensor cores, 6-core Cortex-A78AE, 4GB LPDDR5”
| Attribute | Jetson Nano | Jetson Orin Nano 4GB |
|---|---|---|
| GPU architecture | Maxwell | Ampere |
| CPU cores | 4-core Cortex-A57 | 6-core Cortex-A78AE |
| Memory bandwidth | 25.6 GB/s (LPDDR4) | 34 GB/s (LPDDR5) |
Both modules have 4 GB of memory, so the bandwidth difference comes with a change in memory type, from LPDDR4 to LPDDR5. The Orin Nano 4GB has a separate, higher bandwidth figure for Super mode. The figures above are for normal mode only.