If you have been wondering about how much memory a given project will use, then I have a solution for most of you. It isn't a perfect solution because everyone will be running a different computer configuration (i.e. CPU/GPU), and many will be doing things differently on their computer in addition to running a SETI project (i.e. playing games, doing web searches, running office programs, etc.). WUProp@home-Results has a website with most of your answers. If you are planning on building a new computer and are curious about how much RAM to obtain, then use this to help you decide based upon which project you are going to be running.

https://wuprop.boinc-af.org/results/delai.py

The above link will open up a webpage titled "WUProp@home - Results".
On the left you will find a menu that will open up when you hover over it with your mouse.
Under the RAM section, enter what system you are running and press the "OK" button.

The end result is a table listing the BOINC projects, a list of the application (tasks) per project, and the memory requirements in MB for each application for whether you run a 32 bit or 64 bit CPU. This is a per core answer, not for the entire project, and the numbers given are averages. To the right is a link (graphical icon) to a graph which shows the varied range based upon what CPU and what platform you are running. If you have a late model, high end CPU, look toward the upper region of the graph. An older/slower CPU, look toward the lower region.

If you explore more and go to the project section you will find more info for each of the BOINC projects. Just remember to press the "OK" button after entering each item in the window boxes.

I hope this helps.

Regards,

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George