Vram

If you add two Gpus with 4gb of ram each do you have 8gb useable? 4gb that is faster? Could some one clear this up for me please?

If you use 2 cards with 4GB each your total VRAM will be 4GB because the data in the RAM of one card is cloned to the RAM of the second card.

Ok thanks for the help

How about dual Gpu cards?