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question to nvidia owners

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22 Jan 2010
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1,480
Does playing video content force your card to lower clock speeds like my ATI one does? Is annoying because I like to use windows media centre for tv on one screen, while I play games on the other one but I can't really play anything intensive because having video playing forces me clocks too 400/900.

In case anyone is going to mention it I know you can force constant clock speeds using msi afterburner but this makes the ati display drivers crash every 5 minutes.
 
Windows Media Centre uses the UVD, hence why it causes the drop in speeds. Same thing happens to me but only the memory speeds. Other video players that uses a different form of GPU decoding is fine, such as MPC-HC.
 
I've got to be fair this is appalling from ATI, I know it's a rare situation where you run a game and run flash in the background but shouldnt it obviously default to the higher of the required clocks??
 
Yes, its not good, but for me its only started happening since I put on the new CCC and 10.12 drivers, before then I hadn't had an issue with dodgey clock dropping since essentially first month of the 58xx release.

One option is to use gpu clock tool from AMD(though from techpowerup website), it will pretty much disabled powerplay to any overclock.

THough I haven't used it in a while as MSI afterburner has been fine, you can't IIRC adjust the voltage properly. I would just set the stock 3d speeds at boot with gpu clock tool, if that disables powerplay, I'm not sure if then overclocking with MSI would re-enable powerplay or not.

The other thing used to be that MSI if you overclocked beyond the default CCC limits, would also disable powerplay till you put it down to a clock within the limits.

AT a guess its afterburner needing a slight tweak with either the new CCC, or driver or combo of both. Looks like MSI are likely focusing on new card support though so not sure if theres a fix.

TO me it seems like profiles have been changed as I can't see a way to make a profile with overdrive settings then go and alter it like you previously could, so quite possible MSI needs a "fix" to over ride CCC settings.

Problem would appear to be for me at least since I've had the 5850(launch) that CCC seems to ignore anything outside the CCC limits, now maybe its still taking control at any clock speed and Afterburner needs an update to "take control" back over the clock speeds.
 
One of the reasons I dropped the 5870 for a 480 was the poor powerplay implementation. Power management works great with Nvidia, viewing flash and gaming is not a problem.
 
Go play BF2 or any other game where the 3D is not intensive, the clocks bounce up and down causing stuttering. Mind you that was back in early June when I still had the 5870, the powerplay issues still seem to be there though.
 
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Like I said, I've tried using methods to force constant clock speeds but this always caused the drivers to crash when I was running video content. I don't think it's a bug or anything it just seems that for some reason it needs to run at those clock speeds for video to work right. It's been like this as long as I remember, so it's not a recent driver thing.

Actually it was most annoying when I was using UDK and watching tutorial videos because it would make UDK so slow, that was lame. However, if other video players decode differently and wont force my clock speeds then that solves that problem. I could also try using the software that came with my tv card instead of media centre. I like the look of media centre more though.

While I'm very happy with the performance of my card I'm definitely planning on jumping over to nvidia next round. I probably would have bought another for cross fire, if I wasn't planning to jump ship, bit of a shame really.
 
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