Video cards rendering more than they need to

Not a traditional bug but wasn't sure where else to address this and it is performance related.

I noticed the pillars in Ravensmoor are hollow and have an additional inside texture. That's another texture for us to load, which affects load times.


Less textures to load = better load times and less graphics related lag.

So why not make the inside transparent, or make the pillar a solid object? If it's made solid, we won't be able to angle the camera inside and there would be nothing there to hold a texture.