From 2002-2006 I used to have a Gateway 2000 PC with Windows 98 on it
It had a Pentium Processor from what I remember and a Sound Blaster 16 Card and I think it had 32MB-64MB RAM on it (Can't remember if it had MMX or not)
It ran all 2D stuff including Sonic and Knuckles Collection at full framerate and it ran Sonic R fine at low resolution and Duke Nukem 3D Ran at full 60-70FPS at 320x200 (Though the framerate dropped when I switched to 640x480 and 800x600)
But it had no 3D Card and many 3D Games on it for Windows ran poorly on it.

From the info provided here, what speed was my old Gateway 2000's Pentium Processor running at?