When it comes to expense I suspect it is hard to beat the integrated kind like the Intel i5 processor on my Windows computer. The possible negative here could be putting all your eggs in one basket so to speak. I’m not against spending some extra money but would only want to do that if there is a useful benefit. For example, I think the integrated chip does consume memory that could otherwise be used for processing. While the cost of processor memory is likely least per byte all systems have some limit on how much can be installed.
I must admit to having a limited understand of how display calibration works but there must be some kind of conversion being done somewhere. If this could be transferred to the graphic card card that should be helpful. For some reason, I’ve been thinking this might be possible but my knowledge is sufficiently limited that it doesn’t justify extra spending.
Another preconceived notion of mine is that pricey graphics cards are mostly targeted at video game players which doesn’t interest me at all.