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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Blendor_POLAND on September 27, 2011, 08:40:43 PM

Title: CV64 ,Picasso96 and refresh rate
Post by: Blendor_POLAND on September 27, 2011, 08:40:43 PM

I have Cybervision64 and system rtg picasso96
my  card have 4mb and max refresh rate  1024x768 is 80hz WHY?
pixel clock 1024 768 16bit is 80 mhz maks
I can set more refresh ? or not with this card , ?

Title: Re: CV64 ,Picasso96 and refresh rate
Post by: vox on September 27, 2011, 08:51:04 PM

Quote from: Blendor_POLAND;661580

I have Cybervision64 and system rtg picasso96
my  card have 4mb and max refresh rate  1024x768 is 80hz WHY?
pixel clock 1024 768 16bit is 80 mhz maks
I can set more refresh ? or not with this card , ?

Believe its the VRAM / chipset limit, quite high resolution / refresh for Classics.

Title: Re: CV64 ,Picasso96 and refresh rate
Post by: zipper on September 27, 2011, 09:27:20 PM

As far as I remembet the video chip used does 130 MHz @ 8bit and 85 @ 16bit, so that's the maximum (without using the 10 MHz overclock which may degrade the picture). But I don't remember with which chips the overclock tooltype works.