The fF puts out plain vanilla VGA. IIRC, it's 60 Hz vertical refresh and 31.5 kHz signal, 640x480, I think it would do at least the original 4096 colors. So it takes your Amiga output and makes it VGA monitor compatible. Not SVGA, not XVGA, in fact I am not sure you get anything outside of 640x480 in terms of overscan, etc.
The Commodore board of similar capability came out a while later and had at least some limited programmability as to overscan, etc. A2320, I think.
Of course the basic A2000 that the fF was designed for would not do all the tricks of later chipsets, and it was a great solution at the time.
