2D Clock Speed on HTPC & Video Acceleration Performance

g0pher · Joined: 22 Aug 2007 Posts: 5

I have a 6600GT card in a HTPC machine which does pretty much does
MPEG-2 and WMV decoding acceleration through the PureVideo decoder all
the time, and pretty much never uses 3D mode at all.

Would increasing the 2D mode GPU clock and memory speed improve the
decoding speed of PureVideo? How about general performance of
standard Overlay? Or other modes like VMR/VMR7/9?

Are there any tools available that I could use to objectively
benchmark and compare the performance of such things at different 2D
clock settings? Has anybody tried something like this before?

I'm not really suffering from video acceleration slow downs right now,
but something I've always been curious about, and of course, "if it
ain't broke, it's not going fast enough" right?

- g0pher

Archived from group: alt>comp>periphs>videocards>nvidia

First of One · Joined: 22 Aug 2007 Posts: 1113

"g0pher" wrote in message @4ax.com...
>I have a 6600GT card in a HTPC machine which does pretty much does
> MPEG-2 and WMV decoding acceleration through the PureVideo decoder all
> the time, and pretty much never uses 3D mode at all.

The last time MPEG2 decoding posed a problem was in the PII-300 days.

> Would increasing the 2D mode GPU clock and memory speed improve the
> decoding speed of PureVideo? How about general performance of
> standard Overlay? Or other modes like VMR/VMR7/9?

If you want to speed up VMR7/9 a little, especially when subtitles are
shown, disable FSAA from within the nVidia driver panels.

> Are there any tools available that I could use to objectively
> benchmark and compare the performance of such things at different 2D
> clock settings? Has anybody tried something like this before?

There may be. However, what would be the real world value of such a
benchmark? There are really just two useful metrics for video decoding: # of
dropped frames and % CPU utilization. If with the Purevideo decoder you
currently get no dropped frames in any video you play, and the CPU
utilization stays below 30%, there is absolutely nothing to be gained by
overclocking.

--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."

doom III performance Hi, I have a TnT2 Vanta card and a pentium pro 300 mhz. I wonder if its possible to play doom III at the lowest settings.

FX5200 odd performance problem Hello Well, before you start screaming that I should have gotten a faster card I have to tell, that I read about the FX5200 and it seemed to satisfy all my requirements and I knew that it was a budget card, but hey MX440 was also a budget card so I didn't

GeForce III Ti 200 performance under linux I have the above mentioned card installed on my computer i have both WinXp and Linux Debian When i run America's Army: Operations under WinXp it all goes fine, the graphics are fast and of good quality, but when i run the same game unde

GF5200 fx - Sparkle - performance problems hi! my config: amd 2,4ghz gf 5200 fx (sparkle) winXP directx 9.0 on 3dmark2001 i get only about 3500 points. according to online benchmark tests this configuration should reach more than 7000 points. when i run the benchmark with an ati 9100 on the same p

2D Performance test I need some assistance to determine whether my graphics card, memory needs upgrading or a bug in Windows XP. If you are willing to help do follow these instructions very closely; Set your display driver to 16-bit (if its in 16-bit already switch to 32-bit