I have yet to find a fluorocarbon line that has the same strength to diameter as tippet material. When you compare the same diameter of fluorocarbon line with fluorocarbon tippet, the tippet material is stronger. That means you can use a thinner tippet of the same strength and get a more supple tippet that will give a more natural drift.
The popular line to use as tippet material is Pline so check out the diameter vs strength below
The 6 lb test Pline is 3X:
Now compare with the commonly sold fluorocarbon 3X tippets:
So you can use Pline at 6 lb or Orvis at 9.2 lbs for the same 3X diameter.
There is no free lunch.