OK, but I was just referring to what LOOKS better on screen, regardless of bandwidth. 1080p SBS or T/B or checkerboard offer more resolution on screen than framepacked 720p. Checkerboard is particularly better from my understanding.
Those were available formats before HDMI 1.4. So in reality, 3D gamers shoudn't have had to wait for HDMI 1.4, it has offered nothing better.
What we had before 720p framepacking was just as good, if not better. This is why the Xbox 360 has not needed HDMi 1.4 for 3D. Because it just uses SBS and that's not any worse than 720p framepacked, and SBS can also work over component, vga, dvi etc.
Now, what the consoles can actually render is a different story. Obviously both the PS3 and the 360 struggle to render 720p at decent frame rates in 2D, let alone 3D.
But that doesn't make this discussion moot.
As far as I can tell, PC gamers using 3DTV play might benefit slightly from using 1080p SBS rather than framepacked 720p.