Nvidia Jetson
Jetson是英伟达推出的面向嵌入式计算的硬件平台。
1. Jetson型号
Jetson的型号包括：
- Jetson Nano
- Jetson TX1
- Jetson TX2
- Jetson Xaiver
- Jetson Xavier Nx
2. Jetson各型号对比
Jetson各个型号的对比如下：
| Hardware feature \ Jetson module | Jetson Nano | Jetson TX1 | Jetson TX2/TX2i | Jetson Xavier | Jetson Xavier Nx |
|---|---|---|---|---|---|
| CPU (ARM) | 4-core ARM A57 @ 1.43 GHz | 4-core ARM Cortex A57 @ 1.73 GHz | 4-core ARM Cortex-A57 @ 2 GHz, 2-core Denver2 @ 2 GHz | 8-core ARM Carmel v.8.2 @ 2.26 GHz | 6-core NVIDIA Carmel ARM®v8.2 64-bit CPU |
| GPU | 128-core Maxwell @ 921 MHz | 256-core Maxwell @ 998 MHz | 256-core Pascal @ 1.3 GHz | 512-core Volta @ 1.37 GHz | 384-core NVIDIA Volta™ GPU |
| Memory | 4 GB LPDDR4, 25.6 GB/s | 4 GB LPDDR4, 25.6 GB/s | 8 GB 128-bit LPDDR4, 58.3 GB/s | 16 GB 256-bit LPDDR4, 137 GB/s | 8 GB 128-bit LPDDR4x @ 1600 MHz51.2GB/s |
| Storage | MicroSD | 16 GB eMMC 5.1 | 32 GB eMMC 5.1 | 32 GB eMMC 5.1 | 16 GB eMMC 5.1 |
| Tensor cores | -- | -- | -- | 64 | 48 |
| Video encoding | (1x) 4Kp30, (2x) 1080p60, (4x) 1080p30 | (1x) 4Kp30, (2x) 1080p60, (4x) 1080p30 | (1x) 4Kp60, (3x) 4Kp30, (4x) 1080p60, (8x) 1080p30 | (4x) 4Kp60, (8x) 4Kp30, (32x) 1080p30 | 2x464MP/sec (HEVC)2x 4K @ 30 (HEVC)6x 1080p @ 60 (HEVC)14x 1080p @ 30 (HEVC) |
| Video decoding | (1x) 4Kp60, (2x) 4Kp30, (4x) 1080p60, (8x) 1080p30 | (1x) 4Kp60, (2x) 4Kp30, (4x) 1080p60, (8x) 1080p30 | (2x) 4Kp60, (4x) 4Kp30, (7x) 1080p60 | (2x) 8Kp30, (6x) 4Kp60, (12x) 4Kp30 | 2x690MP/sec (HEVC)2x 4K @ 60 (HEVC)4x 4K @ 30 (HEVC)12x 1080p @ 60 (HEVC)32x 1080p @ 30 (HEVC)16x 1080p @ 30 (H.264) |
| USB | (4x) USB 3.0 + Micro-USB 2.0 | (1x) USB 3.0 + (1x) USB 2.0 | (1x) USB 3.0 + (1x) USB 2.0 | (3x) USB 3.1 + (4x) USB 2.0 | |
| PCI-Express lanes | 4 lanes PCIe Gen 2 | 5 lanes PCIe Gen 2 | 5 lanes PCIe Gen 2 | 16 lanes PCIe Gen 4 | 1 x1 + 1x4(PCIe Gen3, Root Port & Endpoint) |
| Power | 5W / 10W | 10W | 7.5W / 15W | 10W / 15W / 30W | 10W / 15W |
参考资料：
- Benchmark comparison for Jetson Nano, TX1, TX2 and AGX Xavier, https://www.fastcompression.com/blog/jetson-benchmark-comparison.htm
- Jetson Xavier NX, https://developer.nvidia.com/embedded/jetson-xavier-nx
(本条目需要完善，立刻参与知识公共编辑)