1 QUAD or 2 TRIANGLES?

I was just reading some old posts in this forum and I read something that let me in doubt…

The question is simple:

What is faster? Draw 1 QUAD or 2 TRIANGLES to represent the same QUAD?

since OpenGL decomposes quads and polygons usually into triangles before rasterization, using triangles only should be faster

Chris

Using two triangles should be faster but only if you draw them as a triangle strip, otherwise you would have 6 vertices to transform.

Osku