There was no statistically significant difference between GR 90 and GR 95 with respect to legendary+ drop rate (P = 0.15). A P-value of 0.05 was used as the cutoff for statistical significance. Both one-tail and two-tail used where appropriate. Statistical significance was computed using a simple Paired T-test. Ramaladni’s Gift becomes very common by the time one clears GR 90, and this was also considered a regular legendary drop. Potions cannot be ancient and were considered regular legendaries. Mean values of legendary items and ancient items per run were compared.

In addition, gem drops were also recorded. Data on total drops, number of legendaries, set items, ancients of both, and primals of both, were recorded.

At GR 85, you get 11 items each time, at GR 75 ten items, and so on. This means that at GR 90, the Rift Guardian is guaranteed to drop a total of 12 items. I started off recording GR 75+, but stopped running everything below GR 90 as this is where the item drop cap is hit. Due to the lack of official word on the matter from Blizzard, as well as opposing opinions from different players on the forums, I decided to document all the drops from my GR runs to see whether higher runs are beneficial for someone farming better gear (assuming they can clear them equally fast). I have long wondered whether farming higher GRs is more beneficial for getting Ancients and Primals.

Diablo 3 ancient vs primal vs legendary