whats soft15k/AVGA? Like to convert PC to the arcade monitors frequency?
yes,
the arcade VGA is a ready to go card modified in the bios to operate at 15khz.
the soft 15khz does the same thing except it does so in software AFTER the drivers are loaded.. IE when you first turn the computer on the card will be spitting out regular VGA freqz once windows loads up the cards drivers it switches over to 15kghz.
also 15khz will work with a number of video cards, cards more powerful then what the AVGA is built on.. the arcade VGA is fine for mame as mame makes very little use of the video cards hardware, but if you wanted to play something that required a lot of power 15khz would be the best ... option.
iirc the AVGA sells for roughly 90-100 bucks.. it's main selling point is ease of use.