Dualhead card based on Cirrus Logic CL-GD5480.
Each chip have its own 4MB of SGRAM memory.
Palcal's card:
(482) Colorgraphic Communications Corp. Evolution 2
(482) Colorgraphic Communications Corp. Evolution 2
(482) Colorgraphic Communications Corp. Evolution 2
(482) Colorgraphic Communications Corp. Evolution 2