>with four lanes, providing a maximum throughput of 80 Gbps. Does this open an alternate path for eGPUs besides Thunderbolt5 or is the bus pathway not as robust a TB5/USB5/DP2.1 route?

dragonlord:

>with four lanes, providing a maximum throughput of 80 Gbps. Does this open an alternate path for eGPUs besides Thunderbolt5 or is the bus pathway not as robust a TB5/USB5/DP2.1 route?

It's a little more complicated. There are ways to implement eGPU with both TB and USB4, and this is one thing; that DP2.1 makes output signal transport easier is another. These are some sources you might find useful. They helped me understand this subject a little better: https://stderr.nl/Blog/Hardware/Thunderbolt/TechnologyOverview.html https://prog.world/usb4-still-the-same-usb/ btw, RTX 4090 still uses DisplayPort 1.4a - bummer

> that DP2.1 makes output signal transport easier is another. Yeah, that is certainly true, but the key to the bottlenecks is data transport to the eGPU. If the monitors are directly connected to the card at the eGPU, then the display bandwidth never comes back to the main CPU anyway. On a side note, I suspect that DirectStorage 1.1 with the GPU accelerated compression/decompression will help with the bandwidth issue as well, of course. I'll dive into the links. Thanks.