Cpus without ipgus are somewhat cheaper, and the pc will have a dedicated gpu from the very beginning. Is there a reason to pay extra for a cpu with a igpu in this case? Would the pc automatically switch to igpu to save power while not gaming/working? Anything else I am not aware about?
It depends. Are you going to compromise on performance to get a CPU with an iGPU when you plan to run a discrete GPU? If so then no, do not buy one. The chances of you actually needing the iGPU are low to 0.
If its a choice between the same performance CPU with or without iGPU, then for a few extra bucks its worth it for troubleshooting purposes.
If you're using a discrete GPU then the iGPU does absolutely nothing at all. There is no...