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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: LoadWB on September 03, 2006, 07:45:20 PM

Title: Can Retina BLT Z3 do 1024x768x24 or 1152x864x24 non-interlaced?
Post by: LoadWB on September 03, 2006, 07:45:20 PM

There is a Retina BLT Z3 on eBay.  I am looking for someone who has hands-on experience with this board.  It is based on the NCR 77C32BLT and I have found some specs on the chipset, but what I have found does not match up to what I am told the card can do, spec-wise.

I need a card which can do 24 bit color, non-interlaced, at 1024x768 or 1152x864, to replace my Spectrum 28/24.  (The higher resolution might actually be 1152x900, but I rarely use this mode and cannot recall if x900 is a Mac/Sun specific resolution.)

I guess I could just hold out until I find another Picasso IV, but those do not seem to pop up very often.

Edit: Changed wording so it is clear that the Spectrum does not do the modes I need.

Title: Re: Can Retina BLT Z3 do 1024x768x24 or 1152x864x24 non-interlaced?
Post by: zipper on September 03, 2006, 08:59:30 PM

Re:
http://www.amiga-hardware.com/
it does at least 1024x768 @ 24bit.

Title: Re: Can Retina BLT Z3 do 1024x768x24 or 1152x864x24 non-interlaced?
Post by: LoadWB on September 03, 2006, 09:14:04 PM

Thanks.  Was that interlaced or non-interlaced?

There's no question about the resolution and color modes.  The question is about interlacing.

Title: Re: Can Retina BLT Z3 do 1024x768x24 or 1152x864x24 non-interlaced?
Post by: zipper on September 04, 2006, 07:18:06 AM

I don't know for sure the performance of the RAMDAC, but if it manages about 85 MHz, you should get even 1280x1024 at about 50 Hz 24bit, ni (tested just with my PicassoIV).

Title: Re: Can Retina BLT Z3 do 1024x768x24 or 1152x864x24 non-interlaced?
Post by: LoadWB on September 07, 2006, 12:32:49 PM

Thanks.  I'm just squeemish about putting up a clam or two just to discover that the card can't do what I want.  I'm thinking that a PCI expansion for the 4000D might be the way to go, anyway.

Title: Re: Can Retina BLT Z3 do 1024x768x24 or 1152x864x24 non-interlaced?
Post by: zipper on September 07, 2006, 05:08:20 PM

Well, I'd suspect Retina would be quite slow on 24bit, anyway - that's why I mostly kept my PIV on 16bit.