Why is my CUDA enabled graphics card only operating at ~10% when rendering avchd? at DVinfo.net

Daniel Webb · December 19th, 2010, 01:36 PM

I'm new to vegas platinum 10 and have a question. I have a CUDA enabled graphics card on my i7 laptop. When I am rendering avchd video in vegas the gpu is only operating at about ~10% of capacity. Is there anyway to speed up the hardware acceleration so that the gpu carries more of the load?

Daniel Webb · December 19th, 2010, 09:13 PM

is this another issue where it needs to beactivated with a purchased key to use this feature?

Craig Longman · December 19th, 2010, 11:02 PM

Daniel, that seems to be what has been reported, 10-15% usage or so. There is likely only so much that is offloaded to the GPU, and even then, it might be more bandwidth limited than SIMD usage.

Generally, it seems to me the consensus is that CUDA was put in to get on the CUDA bandwagon, and if you render to AVC, it does speed it up... a bit.

As far as I know, it's not disabled in the trial version.

Adam Stanislav · December 20th, 2010, 08:39 AM

I am curious, how do you know what percentage of your CUDA is used? Is there some utility to tell you that? If so, what is that utility?

Daniel Webb · December 20th, 2010, 10:15 AM

I guess it doesn't really tell me how much of the CUDA is used but I use a utility that tells me what percentage the gpu is operating at. I believe it's evga precision

Adam Stanislav · December 20th, 2010, 03:39 PM

OK, thanks. I'll have to check if my video card (not an eVGA) came with a similar utility.

December 19th, 2010, 01:36 PM	#1
Daniel Webb New Boot Join Date: Nov 2010 Location: Kansas City, MO Posts: 23	Why is my CUDA enabled graphics card only operating at ~10% when rendering avchd? I'm new to vegas platinum 10 and have a question. I have a CUDA enabled graphics card on my i7 laptop. When I am rendering avchd video in vegas the gpu is only operating at about ~10% of capacity. Is there anyway to speed up the hardware acceleration so that the gpu carries more of the load?

December 19th, 2010, 11:02 PM	#3
Craig Longman Regular Crew Join Date: Jul 2010 Location: London, ON Posts: 175	Daniel, that seems to be what has been reported, 10-15% usage or so. There is likely only so much that is offloaded to the GPU, and even then, it might be more bandwidth limited than SIMD usage. Generally, it seems to me the consensus is that CUDA was put in to get on the CUDA bandwagon, and if you render to AVC, it does speed it up... a bit. As far as I know, it's not disabled in the trial version. __________________ CraigL

December 19th, 2010, 09:13 PM	#2
Daniel Webb New Boot Join Date: Nov 2010 Location: Kansas City, MO Posts: 23	is this another issue where it needs to beactivated with a purchased key to use this feature?

December 20th, 2010, 08:39 AM	#4
Adam Stanislav Trustee Join Date: Oct 2009 Location: Rhinelander, WI Posts: 1,258	I am curious, how do you know what percentage of your CUDA is used? Is there some utility to tell you that? If so, what is that utility?

December 20th, 2010, 10:15 AM	#5
Daniel Webb New Boot Join Date: Nov 2010 Location: Kansas City, MO Posts: 23	I guess it doesn't really tell me how much of the CUDA is used but I use a utility that tells me what percentage the gpu is operating at. I believe it's evga precision

December 20th, 2010, 03:39 PM	#6
Adam Stanislav Trustee Join Date: Oct 2009 Location: Rhinelander, WI Posts: 1,258	OK, thanks. I'll have to check if my video card (not an eVGA) came with a similar utility.