SLI and VRAM

[basha11]

If i do sli with 2 nvidia gtx cards of same manufacturer, does the vram double [vram of two gfx cards added] ?

for ex, if i do sli with asus gtx 970, my vram wil b 8gb ?

 

[Mousemonkey]

No, it will still only be 4GB as both cards need to hold the same data in order to be able to render frames alternately.