Anyway, I don't know if video card has a big impact on rendering video and compressing video.
It can depending on the task and the tools used. When using the ATi AVIVO video converter the the X1K series can help alot. nV's GF6 & 7 help somewhat but the CPU load is still higher. They both have different features too. Also the nV PureVideo converter portion is still an extra charge.
My mobo book tells me that my board supports: "Extreme 8X AGP Support" (who the hell knows what that means)
I'm not sure the impact of AGP vs PCIe though.
For basic 720P you could use an X1300, but for 1080P you'd want at least an X1650Pro, and likely at least the X1650XT/X1950PRO (edit: or whatever it is they put to AGP).
The improvement in speed is quite dramatic.
Now the rendering part is only minorly affected at best in some specific apps, the biggest thing it helps is to preview effects, the final assembly/output render will be primarily CPU based.
Nah, likely the X1300 will likely be good enough for most things you want to do, but the X1600 gives you a little headroom for when Vista comes out, but it depends on if it's worth it to you. The only thing I like about the X1300 as an 'advantage' is that it doesn't have a fan, it's pasive cooling only, which means no fan to break long term, and no fan noise, but there are also passive X1600s and GF7600s, and even GF7950GTs if you can believe it.
I'd say for the future the X1600Pro with the 512MB is the way to go, but it's your call and for 2D I don't think the performance difference would be noticeable. As time goes on though who knows what parts of the core they will take advantage of (just look at the Folding @ Home improvements).
Just be aware that AVIVO is rather limited. Until other video editing software can take advantage of AVIVO technology, you won't be able to it outside of ATI's little applet.
Which is still more than without it.
It's like buying a card, do you want the one with AC or not?
Sure you might use AC 10 times a year in some places, and maybe 50 times over the life of the car, but would you rather have it or not if it's a free feature?
No one else has a comparable product right now, although nV does offer some similar features for a price, but not as much acceleration and not as many options.
And it does accelerated transcoding of WMV, AVI, DivX, H.264 for AVI and MP4, Standard MPG 1,2,4 and a few others, so it's not like he's getting some unknown format and limited benifit, for what he's looking for it does offer some additional benifit even if he doesn't choose to use it.
Yeah but the compression transcoding he's talking about (WMV in the title) is one of the many AVIVO supports, so I think that it should be a deciding factor since it does just that, and with more options than many pieces of software out there that don't accelerate encoding, just cpu based encoding, this is far from limited let alone "very very limited".