[SPEEDTEST] 2D vs 1D tilemaps

I’ve done some speedtests on using a 2D tilemap or a 1D tilemap. I was under the assumption that 1D tilemaps were faster because it uses one less array lookup. I actually found that a 2D tilemap is much faster. More on this on my blog.

I find it hard to believe that a 1D tilemap is actually slower. Have you guys had the same experience?