I am trying to figure out which app in my system is responsible for the memory spikes (note that the spikes are seen on GPU tab). 

![xxx](https://i.stack.imgur.com/I8b0d.png)

![yyy](https://i.stack.imgur.com/Snjh8.png)

[Here's a question](https://superuser.com/q/68054/23583) that spawned this one.

*EDIT* To show System Information graphs in Process Explorer, try clicking on any of the graphs at the top of main ProcessExplorer window.