I have an
Apollo 580 in the back of my container. i think it is a
580T. Last running about 15 years ago.
I didn't see a 580T listed here:
<http://bitsavers.org/pdf/apollo/Apollo_Price_List_Jul88.pdf
There is both the DN580T mentioned and the DN570T mentioned. They have
2D 8 bit accelerated graphics not what you are looking for.
Pax
--
Paxton Hoag
Astoria, OR
USA