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No, DX11 is 4op., dx7 is 6op. Completely different FM chimp.
the instruments used in waiting on the world to change are: Drums, eletic guatir, keyboard and bass guatir...
no,MX440(4x or 8x)only support DX7,DX7 doesn't include PS1.1
MX4000 used NV18core,only support DX7,DX7 doesn't include pixel shader feature
even lower... I think its requires Dx7