2070 on a 8x Pci Lane



I have a Ryzen 7 2700x witch only has 16 lanes MAX
I have an RTX 2070 for gaming and 1060 For Encoding.

my 2070 Alone gets 16 lanes but with my 1060 in there to both received 8 lanes instead.
do you think it matters if I have 2070 in 8 lanes?

BTW I don't know if it's 3.0 or 2.0? how can I find that out?

Motherboard = https://www.amazon.com/ROG-Strix-X470-F-Gaming-Motherboard/dp/B07C4PH429
 


wait, I found it, its running 3.0