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Will be pretty dope for eGPUs over thunderbolt
by flashback2199 3y ago
Will be pretty dope for eGPUs over thunderbolt
- wtallis 3y agoDo any Thunderbolt eGPU enclosures provide a full x16 slot? The M.2 slot on this card won't work if the card is installed in a slot that only has x4 or x8 lanes provided.
- flashback2199 3y agoNo they do not, however, it has never been totally clear to me if the TB-Pcie bridge they use in eGPU enclosures provides x16 slot and the "x4 equivalent speed" bottleneck is in the TB link, or if it's physically an x16 slot that only has x4 wired up. If it's the former, it will work.
- wtallis 3y agoLooking through the specs on ark.intel.com, the Thunderbolt controllers that specify PCIe lane counts say at best they support one x4 or four x1 links, so any eGPU enclosure using those would need to connect the Thunderbolt controller to a large and expensive PCIe packet switch in order to provide more than four lanes of any speed to a GPU.
- flashback2199 3y agoAh, it won't work then. Oh well.
- c0pium 3y agoThat won’t work electrically, and it’d have crippling performance problems if it did. Thunderbolt is not that much bandwidth compared to gen4 x16 pcie, and there are already latency problems to boot.
- deleted 3y ago[deleted]