What is the Optimal spec for Peakto and Avalanche use?

What is the Optimal spec for Peakto and Avalanche use?

I am hoping to ingest large volumes of photos that include both catalogs and folders of loose images. When I'm considering upgrades to a new Mac, what specs will have the most impact on performance with initial ingestion on Peakto and with conversions on Avalanche? Memory? Chip type? Internal drive space?