The second generation Macintosh, launched in 1987, came with colour (and greyscale) capability as standard, at two levels depending on monitor size - 512x384 pixel (one-quarter of the later XGA standard) on a 12" (4:3) colour or greyscale ("monochrome") monitor, 640x480 with a larger (13" or 14") high resolution monitor (superficially similar to VGA but at a higher 67 Hz refresh rate) - with 8-bit colour/256 grey shades at the lower resolution, and either 4 or 8 bit colour (16/256 grey) in high resolution depending on installed memory (256 or 512 kB), all out of a full 24-bit master palette. The result was equivalent to VGA or even PGC - but with a wide palette - at a point simultaneous with the IBM launch of VGA.
Later, larger monitors (15" and 16") allowed use of an SVGA-a-like, binary-half-megapixel 832x624 resolution (at 75 Hz) that was eventually used as the default setting for the original, late 90s iMac. Even larger 17" and 19" monitors could attain higher resolutions still, when connected to a suitably capable computer, but apart from the 1152x870 "XGA+" mode discussed further below, Mac resolutions beyond 832x624 tended to fall into line with PC standards, using what were essentially rebadged PC monitors with a different cable connection. Mac models after the II (Power Mac, Quadra, etc.) also allowed at first 16-bit High Colour (65536 or "Thousands of" colours) and then 24-bit True Colour (16.7m or "Millions of" colours), but much like PC standards beyond XGA, the increase in colour depth past 8 bpp was not strictly tied to changing resolution standards.