NVLink doesn't have as strict latency requirements as PCIe does. Stricter latency requirements mean you need more die area per GB/s of bandwidth. In practice th

NVLink doesn't have as strict latency requirements as PCIe does. Stricter latency requirements mean you need more die area per GB/s of bandwidth. In practice this means that if you think of it from an mm^2 perspective, you can get much higher bandwidth -- higher GB-per-second-per-mm^2 -- with NVLink than you can PCIe. For many compute/bandwidth heavy workloads where that latency can be masked, this makes NVLink a superior choice, because die space is limited.