14 Aug
2009
14 Aug
'09
2:37 a.m.
On Fri, Aug 14, 2009 at 12:01:59PM +0800, sonofzev(a)iinet.net.au wrote:
Even though RAM is cheap I believe having discrete
video RAM is better
for audio performance...strik me down if I am wrong.. I am open to
suggestion.
Doesn't work as a blanket statement, you gotta measure it.
It has to do with the manner in which system memory is shared between a
video card and other uses.
It has to do with which has the greater bandwidth ... the path from the
CPU to the system memory, or the path from the CPU to the discrete video
memory.
It has to do with whether the path from the CPU to the discrete video
will consume enough bandwidth to prevent your audio from working well.
Bad program code in applications, kernel, or drivers ... can be as much
to blame as anything.
But at least with discrete video memory you can exclude the video card
as a direct and regular cause of system memory access delays.
--
James Cameron
http://quozl.linux.org.au/