If you have an embedded video card with shared ram, how much should you give it for HDTV?

Mine is set for 32 MB.

I've got 1.0 GB of RAM in the system.

If you have smooth playback with 32Mb, then it doesn't make much sense to bump it up.

I give the nVidia 6150 chip on my Asus M2NPV-VM 128Mb of the 512Mb in the system. Depending on which deint/MPEG decoder options I select, less than the 128Mb will result in some choppy playback.

Great, thanks! Overall it's "smooth" but a little choppy sometimes.

I may set it to 128 and see what happens.

It is funny you know is that video RAM is not all the same. I don't believe that this should be right, as what is actually be stored in the Video RAM. Modern desktop systems don't need much more Video RAM than previously, for example Windows XP can run beautifully on a 4MB of shared RAM.

The only reason you would give it more is if you are playing 3D games as the 3D textures are the things that are stored in the video memory. I personally have used 32MB Video card (MX440) and have had no problems. I currently have in a frontend only computer 16MB shared Video RAM and it works fine.

Now I don't purport to be an expert, but I feel that the problem may lie somewhere else, just my guess.

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Girkers

Video ram does matter in the sense that if you're at a certain resolution with a certain color depth more ram is required and in some cases, "better".

I'm not sure if it affects playback though. But there's an easy way to find out.

I know that I've had some games that will play faster on a shared system if I give it more RAM to the video card on my laptop.

1920x1080x4 -> ~8Mb Double that to allow for page flipping. Everything beyond that is work space for the GPU, so it might actually help or it might be completely immaterial. Anybody know how much memory stuff like XvMC uses or what the maximum useful page flipping cycle is?