frame rates depend entirely on whether you can set the edid to work at hdsdi frame rates.
that depends on your scan convertor-
edid tells computer what it wants to output
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All colour space conversions discussions are moot/pointless/endless and affect all systems across the board - in every industry with a colour output device-
printer- video deck - monitor - lcd -projector -art -its been this way since the first time anyone tried to make a colour image... even painters have colour space problems
how that conversion is done is dependant on the box you are using to do the conversion from dvi/vga to hdsdi-
There is no universal/lossless colour space it affects everyone in broadcast print or post -production.
doesnt depend on quality or cost.
http://en.wikipedia.org/wiki/Color_space
http://dx.sheridan.com/advisor/cmyk_color.html
and in video world there is the YUV RGB conversion problem as well and colour sub-sampling-
http://en.wikipedia.org/wiki/YUV
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ultimately colour is perceptual - its not technical problem.
it kindof really doesnt matter because the eye will do its own thing anyway-
vision is all about context -
there is no absolute colour in the eye.