Can anyone please tell me if I would get any benefit in rendering time if I upgrade my current CPU ( Intel Xeon E5620 4 cores 2,4 GHz overclocked to 3,6 GHz ) to Intel Xeon E5645 6 cores 2,4 GHz ?
Well, as far as I know these 2 CPUs are pretty much the same, except the fact that the Xeon E5645 has 2 more cores and 4 more threads compared to the Xeon E5620, so if I end up buying it I'll probably use the same overclocking settings to reach the same frequency I have now ( maybe do minor adjustments if needed ).
I am aware that upgrading the CPU helps a lot in the render time if using the " CPU only " as render option, but I am not sure if upgrading the CPU will help in render times when using the " CUDA " render option. I always use CUDA render because it is about 50% faster than using the CPU only option.
When I render a video using the CUDA render option, the CPU's load is about 40-75% while the GPU's load is about 30-75%.
I always thought that CUDA render is completely managed by the GPU but judging by the load of the CPU during CUDA render it seems I was wrong, yet I still do not understand how exactly CUDA render works, what the CPU does during CUDA render for example.
The software I use for video editing is Sony Vegas Pro.
My GPU is MSI Nvidia GTX 560 Ti Twin Frozr ii OC and I am using Kingston 3x4GB DDR3 1600 MHz RAM.
I usually edit top5/ top 10 videos so I include plenty of effects and transitions for the videos/ images and as far as I know, not every effect and transition can be rendered using the GPU, many of them have to be rendered by the CPU itself and I can confirm this after monitoring my CPU and GPU's load while rendering a video with the effects and transitions I use, when the software comes to render a part with these effects/ transitions the GPU's load goes down while the CPU's load goes up.
Can anyone please tell me if upgrading in my case would benefit me regarding the rendering times ?
Thank you very much.
Edited by Vladimir123, 24 November 2016 - 04:25 AM.