Running GTX1080 and GTX710 together

[iwik]

Hi,
I need to add a Gtx710 to my system which has the main card a
GTX1080. i assume this is going
to make the 1080 run at x 8. Is this correct and if so i have read that some say that currently there is not much difference in speed.
If it does can i expect much of an decrease in performance from
the 1080.
Appreciate any comments.
By the way i am compelled to add this card to get a VGA output to
run my external GPS module. I tried a HDMI to VGA adapter(active) but it was unsuccessful.
Thanks
Les

[airupthere]

Les, whether the 1080 runs at 8x on the PCIe is a function of what motherboard you have.

So you're just adding the 710 to get a VGA out for a GPS module..?? hhhmmm, I would seek an alternative means - perhaps another machine? Let's face it, nothing about this hobby is cheap, I might consider a few extra bucks for another dedicated machine, IMO

[iwik]

Thanks Randy,
Yes it appears if you use another slot then both are reduced.
Had considered another machine but need to spend another $150
to get a networked version. Will try it and then look at my options.
Les

[fsaviator]

Would a USB VGA Adapter meet the requirement?

[iwik]

Thanks Warren,
Had forgotten about those. Will give it a go.
Regards
Les