The voronoi texture node is different in latest version of Blender. What is the equivalent of Cell and intensity setting in the new one?
Settings (numbers) have changed a little, but basically:
2.80 Distance (Intensity > Distance) is 2.83 Distance (with a compensation power function); closest is F1:
Second closest is F2:
Cells is now called Color (some difference due to different Color Management and different internal calculations of the Voronoi):
The 'old' Distance is the 'new' Euclidian Distance (remember: 3² + 4² = 5²), the 'old' Manhattan is the 'new' Manhattan (3 + 4 = 7), etc.
Maybe also have a look at: https://cgcookie.com/questions/11248-voronoi-demystified