I could write a better article - a P200 is way too fast for most things 1994 on back, heck, it's too fast for some stuff from 1996 on back!
I set it up like this, there are far more "ages" to gaming....
EARLY DOS ERA
Either an 8088 or a slower-clock-speed 286 with a turbo button will do the job. CGA/EGA would be the appropriate video, and DOS 3.31 or DOS 5.00 would be order of the day as those were two popular versions. Adlib, GameBlaster, or Tandy 1000 DAC preferred for certain titles that take advantage. 640K is a must.
GOLDEN DOS ERA PT1 - 1988-1992
A 386 DX, or an early low-clockspeed 486 (486 DX-33) with a Turbo Switch, VGA video minimum, and DOS 5 or 6.x, possibly Windows 3.1 installed on the machine for compataiblity with early Windows titles. Adlib, SoundBlaster, Gravis Ultrasound, and the like being sound of the day. 8-16MB of RAM is the optimum.
GOLDEN DOS ERA PT2 - 1992-1996
A 486 DX2/66 -> Early Socket 4 Pentium device (ie FDIV era P60 or P66), preferably with a Turbo Switch, SVGA video, and a higher end SoundBlaster, preferably with wavetable being the preferred hardware. The newer the hardware, the less memory you can get away with.
Windows 9x Era - 1995-2000
If you are doing earlier non-3D titles such as Doom, Duke Nukem 3D, Postal, anything like that, then you are better off sticking to the lower-end of the early Pentium boxes (ie. P90-P233MMX at most), anything faster is better for the later 3-D oriented titles, which I'm not that particularly familiar with.
Most of the hardware they were suggesting was so fast they might as well have thrown an early release of DOSBox on it, I was running DOSBOX on a PIII 1 GHz back in 2005 because most of the games I had for DOS would NOT run on a PIII 1GHz, even when I was running Windows 98 SE (they were just too fast - you try DepthCharge on a PIII in GWBASIC....the whole game lasts 3 seconds). Even on a P200 that game, and it's other unthrottled pre-1994 DOS games were too fast. Truth be told, I always considered Tom's Hardware only about MODERN systems, and likely they are pretty fuzzy over there on vintage stuff and forgot a lot because that's not their focus.