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No: The RPi5 has 4x lanes, the 4090 requires 16x lanes of PCI3.0
by rahkiin 3y ago
No: The RPi5 has 4x lanes, the 4090 requires 16x lanes of PCI3.0
- ssl-3 3y agoDoes it require 16x? Previous-gen video cards were often connected to risers that only provided 1x, and lots of "normal" systems (with a bit of expansion) don't have enough PCI Express lanes to give 16 lanes to any one device.
- Sohcahtoa82 3y ago> the 4090 requires 16x lanes of PCI3.0 Does it require 16x PCI-E 3 just to run? Or is that just a minimum to get the most performance?
- 0x457 3y agoNo, it doesn't require it. It's desired to fully utilized it, but not required. PCIe is fully backward and forward compatible between versions. Many eGPUs run at PCIE 3.0 4x.
- taspeotis 3y agoNo: it does not
- HankB99 3y agoRPi5 exposes 1 lane on the PCIe connector. It routes 4 lanes to the 2040 chip that provides much of the board's I/O. IMO 1 lane is better than none. I love the CM4 because it exposes 1 PCIe lane and that can support a NVME SSD making it the first Pi that supports what I consider to be a decent storage interface.