CPU is Intel N5105
Win 11 Pro
8G RAM
QHY 178M
Latest non-beta version of sharpcap 32 bit
Latest graphics drivers from Intel (around March-May 2023 depending on file dates)
Running this camera at full resolution and speed, MONO8:
No graphics accel (in settings menu): CPU 99-98%, GPU ~10%, 50 fps
With graphics accel: CPU 100%, GPU ~40-50%, 35 fps.
Graphics acceleration makes things worse
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Please also read about Troubleshooting USB Issues before posting.
*** Please do not post license keys - please report any problems with licensing to 'admin' by private message ***
Please include the following details in any bug report:
* Version of SharpCap
* Camera and other hardware being user
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[If SharpCap crashes, please send the bug report when prompted instead of including the log]
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Re: Graphics acceleration makes things worse
Hi,
yes, that's the sort of reason (along with the possibility of out-of-date drivers causing stability issues) that the option is there to turn it either on or off.
The relative performance depends on a lot of things including
* Relative power of CPU and graphics card
* Resolution of the camera in use
* capabilities of the graphics card
* How zoomed the image is
In your case, it sounds as though there is significant extra load going onto the CPU (at least relative to the fairly low power N5105 CPU) when the acceleration is enabled, and that this outweighs any benefit.
Just to give an opposite data point, NVIDIA 1650 graphics card and a more powerful CPU, having acceleration on drops CPU usage by about 20% and also eliminates an increase in CPU with increased zoom that happens without acceleration.
cheers,
Robin
yes, that's the sort of reason (along with the possibility of out-of-date drivers causing stability issues) that the option is there to turn it either on or off.
The relative performance depends on a lot of things including
* Relative power of CPU and graphics card
* Resolution of the camera in use
* capabilities of the graphics card
* How zoomed the image is
In your case, it sounds as though there is significant extra load going onto the CPU (at least relative to the fairly low power N5105 CPU) when the acceleration is enabled, and that this outweighs any benefit.
Just to give an opposite data point, NVIDIA 1650 graphics card and a more powerful CPU, having acceleration on drops CPU usage by about 20% and also eliminates an increase in CPU with increased zoom that happens without acceleration.
cheers,
Robin