Typical RAM and FLASH size for software GPS Receiver

[Johnson]

I know this question sounds silly since so many factors will affect the
actual hardware requirement. However, I still want to get a general idea
about the typical requirement of the hardware.

Does anybody know how many MBytes of RAM and MBytes of FLASH (or ROM)
for a typical software GPS receiver? If there are significant difference
between a low-end GPS C/A receiver and a high-end RTK-capable receiver,
I would like to get the requirement of both.

For a traditional receiver, if I remember it right, a RTK-capable
receiver typically requires no more than 10M Bytes FLASH/ROM to save the
firmware, and 100M Bytes RAM to run the firmware. Correct me if I am wrong.

Thank you.

Johnson