RAM configuration

Question

Hello, 
 
 I am upgrading my setup to run render for ContextCapture. I was wandering if I need 128Gb of RAM. I read that 128Gb is only interesting for processing ultra-large blocks of photos. Is a 300 Gigapixels block relate to that? 
 
 Also, what is the best target RAM for adaptive tiling for a 64Gb and a 128Gb respectively? 
 
 Thanks

Scott Ernst · Answer

I have 64Gb andI never come close to maxing it out. The adaptive tiling defaults to 16Gb although I've read that with the newer versions you can go up to 32. Folks at Bentley have told me to keep it at 16 in the past. I have an i910900 and it hits 100% before my RAM is breathing hard. I've never run a 300 GP project.