3 ms·
What can actually saturate that kind of a local link? PCIe 4.0 maxes out at 32 Gbps and 5.0 is increasing that to 63 for x16. x32 exists in the spec, but I'm cu
by nonameiguess 5y ago
What can actually saturate that kind of a local link? PCIe 4.0 maxes out at 32 Gbps and 5.0 is increasing that to 63 for x16. x32 exists in the spec, but I'm curious what if anything actually implements that? Certainly not any consumer-grade boards.
- wmf 5y agoA Thunderbolt 5 controller would probably have a PCIe 4.0 x4 (64 Gbps) connection to the host.
- Tsiklon 5y agoI would assume that display data carried over TB could come close to saturating it - 4K 120Hz requires a data rate of ~26Gbps. But I think a big main beneficiary here could be in external GPUs. A high performance GPU connected via Thunderbolt 3 currently takes a bit of a performance hit (I could be wrong but I thought in the realm of 10-20%), but if the data rate is doubled perhaps that could be minimal for the current generation of GPUs.
- touisteur 5y agoThought it was giga-transfers? Wikipedia says: Version 3.x: 8 GT/s ×1: 985 MB/s ×16: 15.75 GB/s You can plug a 2x200GbE Mellanox Ethernet controller on 2 PCIe3 16x connectors (linked by a bespoke cable) Version 4.0: 16 GT/s ×1: 1.97 GB/s ×16: 31.5 GB/s I think you can also buy eth controllers that will saturate that.
- rasz 5y ago32 GB/s