The 1982 Vectrex is the only home console with its own built-in vector monitor, drawing crisp glowing lines instead of pixels. Games shipped with plastic screen overlays to add colour, and the whole library fits in a handful of megabytes.
Full-speed on all R36 models. Emulators can draw the original screen overlays, which several games effectively require to be readable.
The chip is the same in every model, so the rating is too. What differs is the screen: 4:3 panels suit most home consoles, the 1:1 square panel suits Game Boy and GBA and shows 4:3 games with bars.
The R36 handheld family runs Vectrex titles with perfect compatibility out of the box.