The target vram is supposed to be a soft limit which grows when needed up to the max vram setting.

The default values for target and max are such that target < max.
The default value if max is specified on the command line is < max.

But, if both the target and max are specified on the command line, then we do not check to make sure that target < max.

Once they are set, we do ensure that we never grow the target past max, but if they are initially set with target > max then we allow that errant condition to continue.