CPU vs GPU
Apple is releasing the iMac Pro in Dec, it will offer different configurations of CPU and GPU and I was wondering which would have the greater impact on the speed of Capture One. In other words, if I have to choose, which will give me more bang for the buck, maximize the CPU or the GPU.
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GPU 0 -
I can't speculate on unreleased hardware performance, but the priority of the hardware spec consideration for Capture One across the board should be:
1) CPU (most of the work will be done by the CPU)
2) Storage speed (large volume of read/write going on constantly)
3) RAM (a session will rarely use more than 10GB)
4) GPU (OpenCL performance)0 -
Perfect! Thank you. 0 -
In addition to Ben's comment, remember that OpenCL (GPU acceleration) will give you a lot of bang for the buck. However, everything depends on each other, and in different ways.
If you have a very fast GPU and a slow CPU, the CPU cannot feed the GPU fast enough.
If your disk isn't fast enough, either in read or write, CPU or GPU performance won't matter, as the bottleneck is the disk.
etc, etc..
Obviously, buy as fast hardware as you can afford.
On pre-built platforms like iMac's and MBP's, I would personally go for a quicker GPU option, and go down on the CPU instead, as the CPU is usually still fast enough anyhow.0 -
Thanks for this clarification..Indeed I need to replace my 2012 iMac with a new 2017 iMac having all the suggested features..
Added Update:
Since version 10.x.x, I was experiencing a lot of "hangs" (spinning beach ball and Capture One not responding) Got some help desk feedback after filing a log file and was advised to try to set the "OpenCL" to "never". My graphics card is a NVIDIA GT650 with only 512Mb. The CPU is a 3.1 GHz i7. Now the rendering in the viewer is not hanging anymore..0
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