Pretty interesting and revealing this Ben Krasnow presentation. What it kind of confirmed to me is the quick transmission is with 20Mhz to get the data buffers updated, but that transmission follows the update of the display cell by cell with looking up the waveform and pushing it out. The presentation also proves that speed is inverse to display quality (contrast). Btw, very neat oszi - a far cry from what I ever can dream of.
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