NVLink - AshokBhat/notes GitHub Wiki
About
- Wire-based communications protocol
- For near-range semiconductor communication - data and control code transfers
- Between CPUs and GPUs and solely between GPUs
- Proprietary
- Developed by Nvidia
Performance
| Interconnect |
Transfer Rate |
Eff. Payload Rate per Lane per Direction |
| PCIe 1.x |
2 GT/s |
~0.2 GB/s |
| PCIe 2.x |
4 GT/s |
~0.4 GB/s |
| PCIe 3.x |
8 GT/s |
~1 GB/s |
| PCIe 4.0 |
16 GT/s |
~2 GB/s |
| PCIe 5.0 |
32 GT/s |
~4 GB/s |
| NVLink 1.0 |
20 GT/s |
~2.5 GB/s |
| NVLink 2.0 |
25 GT/s |
~3.125 GB/s |
See also
- [PCIe]] ](/AshokBhat/notes/wiki/[[NVLink) | Infiniband
- [Nvidia DGX]] ](/AshokBhat/notes/wiki/[[Nvidia-Jetson) | Nvidia Tesla