[cyberdrunk]

Even 386 was absolutely crushing A1200 in some respects. In Amigas, you had to set every bit of a pixel separately, which didn't hurt for 2D games with static art assets (which you just copied from memory onto the screen), but it was a killer for anything 3D based. In result, you could have a 386 run Doom IIRC, whereas 3d shooters on Amiga 1200 were much worse than even Wolfenstein 3D.

[danielbarla]

Oh yes, and Wolfenstein actually ran quite well even on a 286. Higher res and framerate than same time period Amiga titles. Aside from the additional inefficiency you mentioned, I think 3D is an area where none of the Amiga's specialised hardware chipsets helped (or at least, nowhere near enough / as much as they did with 2D), and the CPU performance disparity started to really show.

[tibbydudeza]

Amiga stopped investing/improving their unique hardware chipset and PC's simply overcame that deficiency by sheer CPU power and improved graphics output standards (EGA->VGA).