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Daedalus · 15 June 2021, 11:55

Fair enough, I'm using it in the more general sense for the amount of information that can be passed, rather than the more specific modulation meaning. But I wasn't talking about horizontal resolution as being limited, since that is, like you say, effectively unlimited as far as an Amiga is concerned - after all, a 1084 can happily display a 1280x256 Amiga screenmode, which is the limit of the native Amiga pixel clock. It's the vertical resolution that's limited due to the 15kHz horizontal frequency - there are only so many lines that can fit into a 50Hz frame at 15kHz, which is where the throughput limit that I was talking about comes from. More lines means either dropping the 50Hz vertical refresh rate (which is kinda what interlacing does), or increasing the horizontal refresh rate (which is what VGA does).

15 June 2021, 11:55	#2808
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,374	Fair enough, I'm using it in the more general sense for the amount of information that can be passed, rather than the more specific modulation meaning. But I wasn't talking about horizontal resolution as being limited, since that is, like you say, effectively unlimited as far as an Amiga is concerned - after all, a 1084 can happily display a 1280x256 Amiga screenmode, which is the limit of the native Amiga pixel clock. It's the vertical resolution that's limited due to the 15kHz horizontal frequency - there are only so many lines that can fit into a 50Hz frame at 15kHz, which is where the throughput limit that I was talking about comes from. More lines means either dropping the 50Hz vertical refresh rate (which is kinda what interlacing does), or increasing the horizontal refresh rate (which is what VGA does).