Question Gigabyte Z790 Aorus Master X

[rcflyercomp]

OK, this is the second brand of MB that I have purchased. The first was a Asus Strik 790E wifi 2. Both advertise/d PCIE x16 slots with m.2 gen 5 SSD capabilities. However as I am now seeing, this Gigabyte board is set up such that if the SSD is installed in the #1 slot and the graphics is installed in the first slot along with it, the x16 bandwidth is split only giving 8 lanes to each item. Does anyone know of motherboards that don't do this and give full bandwidth to each component? Does the MSI MPG Z790 carbon wifi 2 have separate lanes for the two components. It is the other board I am considering. Thanks.

 

[Lutfij]

https://www.msi.com/Motherboard/MPG-Z790-CARBON-WIFI-II/Specification
*PCI_E1 slot will be Gen5x8 when installing M.2 SSD in the M2_2 slot.

Even a more expensive board like this one;
https://www.gigabyte.com/bd/Motherboard/Z790-AORUS-XTREME-X/sp#sp
* The PCIEX16 slot shares bandwidth with the M2C_CPU connector. The PCIEX16 slot operates at up to x8 mode when a device is installed in the M2C_CPU connector.
Has the same issue.

 

[rcflyercomp]

So it seems there is the x16 architecture that everyone is advertising, but is in fact not there, correct? Bummer. I wonder if going to the gen 5 and halving the transfer lanes is any better than just staying with the old gen 4 SSDs.