Blade comparison, DW4765 vs DW4701:
Both the DW4765 and DW4701 blades are listed by Dewalt as XP products.
More importantly is the difference in intended use.

The DW4765 is for use in a tile saw. This means it's designed for wet cutting where the temperature never gets very high because it is constantly water cooled. It is a little thinner and thus has a thin kerf.

The DW4701 is for use in an angle grinder. It is for dry cutting and thus can handle higher temperatures. This is achieved with the segments which allow better airflow for cooling. The cut will likely be by hand so the blade should be a little stiffer and thicker. This results in a wider kerf.