> > In Diet's case, he's most likely listing the total gain in the "average speed"
> > output, and in a previous post he mentioned some games running as slow as <50%.
> > wonder, too, if perhaps the games are bound more by the memory system or video
> > emulation on his machine.
> Well, elfin is dgPix hardware with the VRender0 video chip - that seems to eat a
> significant chunk of performance when testing on my i7 notebook.
It's VRender0- (Minus) which in hardware terms is basically just a framebuffer with some extra write modes for handling transparency. I assume in this case VRender0- is actually just a software library compiled into the game code.
It shouldn't be eating up a significant amount of performance in MAME's video code, mostly memory writes and the Hyperstone.
Actual VRender0 is Crystal System, where the video is actually hardware accelerated. (Same features but done in hardware, not a software lib?)
Then there's the Voodoo / Medix GX PC based board on which Funky Ball runs which they called 'VRender 2Beta Rev4'