Why not 16.0 GT/s on RTX 3090?

[rexenor]

These reads as if I'am using 4 lanes instead of 16 Am I seeing something wrong?

Windows 10 Enterprise at "Ultimate Performance" power option. Its a PCIe Gen 4.0 GPU on a Gen 3.0 system. Could that be messing up the sensor readings?

Mobo: Asus Pro WS X299 SAGE II

CPU: Intel Core - i9 10980xe

GPU: NVidia RTX 3090

Thanks!

 

[Martin]

You're mixing link speed with link width.

 

[Dalai]

PCIe 3.0 has a maximum bandwith of 8 GT/s per lane. See https://en.wikipedia.org/wiki/Pcie#Comparison_table
What you see in the BIOS is the lane count (number of lanes), which is typically x16 for GPUs but may also be lower - x8 or even x4 - for lower-end cards.

Regards
Dalai

 

[rexenor]

Well now I know! Thank you very much everyone!