nVidia GRID vGPU profiles - what do they mean?

Can someone explain what these different GPU profiles mean? I have searched google for an hour with no results, and read through the GRID PDF documentation with no results. I have been able to gather that the number at the end is the gigabytes of RAM allocation, but what about the "q", "a", "b", etc...

grid_p4-8q
grid_p4-8a
grid_p4-4q
grid_p4-4a
grid_p4-2q
grid_p4-2b4
grid_p4-2b
grid_p4-2a
grid_p4-1q
grid_p4-1b
grid_p4-1a

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AaronSSHIT ConsultantAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Application Designer and Power Users and the docs do list the profiles
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:

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AaronSSHIT ConsultantAuthor Commented:
Beautiful, thank you! I flipped through that exact document several times, scrolling the table of contents, searching for the words PROFILE, grid_P4-8q etc. but nothing cam up. I was using the wrong search terms, it was right in front of me!
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