2GB, nice.
EOS R5, DIGIC X in general
Resource Manager is gone. Now we have Resource Manager 2...
Some "old" functions exists, but they contain only assert:
debug_assert(0,"Resource::RscMgrOldApiStub.c",0x2b);
smemShowFix DNE. Replacement is res_memshow that requires numerical argument. Output is not yet understood.
R5 has 1GB(2x512) + 4GB(2x2GB) DDR4 memory. ICU bootloader / FROMUTIL says it has 1GB. How it works it is unknown.