Heretic II and MCM

Heretic II Performance - fstest.hd2
Voodoo2 Single @ 800x600
Celeron 550Mhz Socket-370	49.2 fps
Celeron 366Mhz Socket-370	36.1 fps
Celeron 333Mhz Slot-1	32.0 fps
Pentium II 500Mhz Slot-1	46.1 fps
Pentium II 400Mhz Slot-1	37.7 fps
RivaTNT @ 800x600
Celeron 550Mhz Socket-370	34.3 fps
Celeron 366Mhz Socket-370	30.1 fps
Celeron 333Mhz Slot-1	28.1 fps
Pentium II 500Mhz Slot-1	33.5 fps
Pentium II 400Mhz Slot-1	30.9 fps

Heretic II, based on the Quake II engine with OpenGL drivers, shows much of the same. Voodoo performance taking a slight lead over TNT, but with the TNT providing more consistent framerates through the demo. This test was run with a single Voodoo2 as opposed to SLI for the Quake II tests.

Motocross Madness - Direct3D Performance
Voodoo2 Single @ 800x600
Celeron 550Mhz Socket-370	48.2 fps avg
Celeron 366Mhz Socket-370	37.4 fps avg
Celeron 333Mhz Slot-1	35.4 fps avg
Pentium II 500Mhz Slot-1	45.9 fps avg
Pentium II 400Mhz Slot-1	42.1 fps avg
RivaTNT @ 800x600
Celeron 550Mhz Socket-370	54.2 fps avg
Celeron 366Mhz Socket-370	43.6 fps avg
Celeron 333Mhz Slot-1	41.5 fps avg
Pentium II 500Mhz Slot-1	53.4 fps avg
Pentium II 400Mhz Slot-1	51.2 fps avg

Since there is no demo recording function for Motocross Madness, these tests are a bit more subjective, taking framerate screenshots at 30-second intervals from a standstill for the length of a 5-lap race against 8 opponents on the Houston Supercross course.

Lots of Screenshots

Here we see an interesting turn of events. For the first time in these tests, the TNT takes a leap forward in performance, beating out the single Voodoo2 on all configurations at 800x600. This is a testament to the exceptional Direct3D performance of the RivaTNT chipset.