[linux-audio-dev] Re: [linux-audio-user] latency: video card contribution

[Dmitry S. Baikov]

>  Shared memory is not the highest performance alternative in any
> operating system. When the video memory is part of system memory then
> the processor the video controller fight for memory bandwidth. This
> slows both down.
>
>>
>> So, the question is: what to choose, integrated intel solution or
>> ati/nvidia one (in this case, nvidia is preferred, because of driver
>> quality).
>>
>
> Choose a good controller with a bit of dedicated video memory. For
> purely audio apps you don't need all that much, but if you're going to
> run video apps or do multimedia stuff then you'll want more.
>
It's hard to find light laptop with dedicated controller at a reasonable 
price :)
Is it possible to do 8in/8out and 64-sample buffers with RME Multiface 
CardBus on a laptop with shared video memory?

And the only one(and expensive one) I found is with nvidia controller 
(Sony Vaio VGN-S480). Not sure about nv TurboCache - is it a shared 
memory solution?

Seems i want too much to be in one unit.