SDRAM

/ˈɛs diː ˈræm/

n. — “SDRAM: DRAM that finally learned to dance to the system clock's tune, pretending async chaos was never a thing.”

SGRAM

/ˈɛs ɡræm/

n. — “SGRAM: standard DRAM with graphics pretensions, strutting special features to handle pixel-pushing without total memory anarchy.”