PT/PT vs PT/UHD for exterior shots?

[Dippndots]

I had been using PT/PT for exterior shot with lots of foliage because it was recommended by the tool tip, but I recently rendered the same shots with PT/UHD and it was nearly 30% faster and less noisy. Soooo, is UHD the way to go all the time now?

[maru]

If it works - great. There is no rule. Generally UHD calculation time may be very long in exterior scenes, so by changing to PT+PT you would simply save that calculation time.

Below are some examples (PT+PT, UHD from scratch), but I am planning to do some "proper" tests.

[Dippndots]

Ah ok cool, good to know!