photo of the top side of a SBus graphics card, it has a big chip labelled “Bt463”, a smaller one with a Vitec label, and some RAM
https://mastodon.infra.de/system/media_attachments/files/111/234/040/675/994/736/original/583d750183d0a630.jpeg
Apparently one of the SBus graphics cards in my stash is a Vitec RasterFlex32, which supposedly is one of the better frame buffers of that time?
The other is an older 1 MB TGX.
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