No, you need to do both to set up the monitor. White color temperature and brightness are set with the monitor controls. The instrument reads the screen, but you adjust manually. You don't want to use the video card for these adjustments as if the red had to be reduced to 230 (from 255), the range output of the card would be 230x255x255 rather than 255x255x255. Once you adjust white and brightness, the instrument/ software profiles the monitor and builds the look up table.
I agree with the other posts that the high end monitors are much more uniform across the screen.
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