From someone on the chip team: “The IGA one is prob just a sea of gates and not interesting save for the fact that w/o its timing bug, it would have been a killer in the market as it was the first graphics chip using cheap dram vs static ram as was prevalent at time, sloppy engineering by that team killed it.”

Package

(3| STUCK)

ii IIT
IGA TM
(M)(C) IIT 1990

1003BC4C9F0C
AET1
PT 90440A USA

Die

1003B
MM9219A

IGG TM
IIT INC
MICROCODE
(C)(M) 1990