Statistics show that over 50% are still running on 32 bit OS.
XP, Windows 7, Windows 8, Windows 8.1, and Windows 10 all in 32 bit.
More on 32 bit than on 64 bit.
Apple has Moved to Mandate that All APPS must be 64 bit, going forward.
So there will have to be a length of time, when both a 32 bit App and a 64 Bit App are concurrently released.
a Member will have to Choose.
4K with 10 models , any member knows ,how much memory is required ?
There is no Pre-determind Memory amount.
Each Clip when Played, is 1st Expanded into Memory.
So the Size ( length in time ) of Each Clip Varies and So to the Amount of Memory it uses.
the Combined total of All 10 clips expanded into Memory is not something that can be pre-determined.
10 clips of 4K which are just short previews, will play in Less than 3GB of Memory, and run fine in 32 bit.
Processor speed, Core and Thread Count Will determine how smooth they play.
But 10, 4K clips of 90 seconds length, will exceed the 4GB ( 3.5GB realistically ) of Memory limit of a 32 bit app.