[mythtv-users] High end, state of the art Myth Frontend

[Joseph Fry]

>> Well, I've upgraded from a 9400GT, to a GT220, a GT430 (ugh) to a GT640 and each step of the way picture quality has improved in various ways. Yes I've gone back and tried to old cards (this week actually) and yes the newer ones are better, my girlfriend has commented "what's wrong with the picture" when I went back to the GT220 last week trying out another old LGA775 board that doesn't seem to like the GT640, doesn't like the 220 much either!
>
> now we're entering the placebo realm....
>
> Must be the quality of the digital cable you're using , the signal is purer !
>
> Decoding will be identical between all those cards, and Advanced 2X
> will be identical to all the cards supporting it.
> Now cards like the GT4xx or GT6xx have extra post-processing options,
> but they aren't enabled by default.
>
> I'm willing to bet that if you did a bit for bit comparison between
> all those cards, using the same options, you'll find identical data.

I was thinking the same thing at first so I had to look it up...
Nvidia likely tweaked the design of the silicon between generations:
http://en.wikipedia.org/wiki/Nvidia_PureVideo  The GT640 is a 5th Gen
chip, so it may have improved a few things, but the 220 and 430 should
be identical except, perhaps, in the resolution and framerates they
can support.

But most likely the differences, to be perceptible, are related to the
vendor's default settings for color gains, contrast, etc rather than
the capabilities of the silicon.