Does the Video Array Technology work similarly to SLI (Scan Line Interlace)?
No. SLI is a technology developed and used by 3dfx, where each card rendered alternate lines (one card would render the odd lines, the other card would render the even lines). Video Array Technology divides the screen in multiple parts. In the case of using two video cards, the screen is divided, vertically, in two parts: one video card renders the upper section, and the second video card renders the lower section.