I think the fastest boards were the ones made by Radius for the last nubus macs (Radius Thunder IV Gx 1600) since by that time they were one of the few companies left. The built in video is generally faster then anything you can plug into a slow nubus slot, but you are limited to 2mb of vram. Since the 840AV machine has built in DSP's finding a video card with dsp's (the radius I mentioned) would probably be a waste of time (and doesn't work with os 8.x I believe). I have an inexpensive Supermac Thunder 24 (Radius purchased
The speed of Nubus hadn't crossed my mind. Good point. Any rough ideas on how much speed one gets from DSPs?
Too bad there isn't a card that would just add VRAM slots. Has it been confirmed that the 840 can't use VRAM chips larger than 256k? Just because Apple didn't certify it doesn't mean it won't work; witness the SE/30 and 16MB SIMMs.
I am using MacOS 7.6.1 and NetBSD on my Quadra. I probably should have mentioned that.
Supermac and rebadged some cards I believe) board in my 950 system that allows for high resolution video (has 3mb+ of memory?) a.. 640x480 up to 24-bit b.. 832x624 up to 24-bit c.. 1024x768 (at 75 Hz) up to 24-bit d.. 1152x870 up to 24-bit
I suppose I could reverse all these numbers to figure out how much RAM it must have, but it's going to be awfully tedious to do this for all the cards I find online. (Seems to be 3MB if my math is right.) Interesting that video cards used to be sold by the res/color modes they supported, and now they're simply sold by how much VRAM is onboard.
Maybe my best bet is to just make sure I have my VRAM maxxed out. I don't know if hunting/paying for a slow 3 or 4MB card is going to be better than the fast 2MB I could have otherwise.
Tim
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