@bearerofthetorch:
look at least at
this table.If you want to play 3D games like DOOM3, you need 3D compatible card. For example:
X1950 for MorphOS and linux and RX 580 for AmigaOS. I.e. at least two cards.
Otherwise you can do some compromise. If you really want only one card, you have to prioritize your system:
MorphOS like main system - use X1950, 3D for linux, but 2D only on AmigaOS
Look at
"With 3D hardware acceleration:" partAmigaOS like main system - use Southern Island, i.e. HD77xx-79xx or R9 280, linux also works here with double buffer framebuffer, but MorphOS not works.
or use Polaris RX 550 - 580 card, very powerful, AmigaOS only. No linux, no MorphOS.
AmigaOS 3D cards.
linux like main system - use HD6970, with no MorphOS and 2D only AmigaOS.
Or HD 6870 with 2D on MorphOS and 2D AmigaOS.
After bigfoot finishes his TinyGL update, best single will be something like HD 6870 with 3D on MorphOS + linux and 2D on AmigaOS. It will be great, but there are no fixed term of issue.
Not forgot that for all newer AmigaOS cards you also need extra drivers - you can find them in Sam460 article.
AmigaOS3: Amiga 1200
AmigaOS4: Micro A1-C, AmigaOne XE, Pegasos II, Sam440ep, Sam440ep-flex, Sam460LE, AmigaOneX1000
MorphOS: Efika 5200b, Pegasos I, Sam460LE, Pegasos II, Powerbook G4, Mac Mini, iMac G5, Powermac G5 Quad