Hi.
In Resolve the CPU is used to run the app, disk I/O and compression and decompression of codecs.
Resolve does all its image processing in the GPU on the graphics card. More CUDA/OpenCL Cores are better.
The paid STUDIO version of Resolve can use hardware accelerated decode and encode, if your source video have certain codec, resolutions, bit width and Chroma subsampling.
Here is tree different links for Intel ( NON XEON ), nVidea and AMD Graphics Cards that support hardware acceleration of your video format.
nVidea have the best documentation, so let us begin with it. Here is a link:
https://developer.nvidia.com/nvidia-vid ... ECFeaturesIf you click on 'Supported Format Details (Click to learn more)', then you see which Codec, Resolutions, Bit width and Chroma subsampling, that can be hardware accelerated.
Here is a link to Intel Quick Sync Video which is Intel's video encoding and decoding hardware:
https://en.wikipedia.org/wiki/Intel_Quick_Sync_VideoAnd finally the newest. The AMD's Graphics Card had only support for hardware accelerated decode and encode since resolve version 16.0:
https://en.wikipedia.org/wiki/Unified_Video_DecoderIf your Source Video always is hardware accelerated decoded with one of above cases can you use a CPU with less number of cores.
All videos that are NOT hardware accelerated decoded and encoded in one of the 3 above cases are decoded and encoded by the CPU, But it is several times slower.
And the i7-2600K is to old to use the above Intel Quick Sync.
But before I received my STUDIO Dongle, did I actually test Resolve with small clips of ProRes videos.
So I will expect you can do some thing in Resolve if you transcode to a more Resolve friendly codec first.
One that can use one of the possibilities for above hardware supported acceleration of your video format.
I did not try Fusion, and will not expect it to work very well, as it uses the CPU much.
But else will I recommend you to use a AMD Ryzen CPU and motherboard. And to choose a much stronger CPU.
Regards Carsten.