Power Macintosh G3 & G3 All-in-one: Video RAM Upgrade

The Power Macintosh G3 and G3 All-in-one includes 2 MB of SGRAM on the main logic board. The video RAM can be expanded to 4 MB or 6 MB with an additional 2 MB or 4 MB of SGRAM on a 144-pin SO-DIMM (small outline dual inline memory module). This module is an industry standard upgrade that is also commonly used in PC computers. Some configurations ship with a VRAM module already installed.

Note: The only way to obtain a VRAM upgrade from Apple, is to order the upgrade at the time of purchasing a Build To Order computer from the Apple Store or purchase a configuration with expanded VRAM. Apple does not sell separately a VRAM upgrade for the Power Macintosh G3. VRAM upgrades must be purchased from third-party vendors.

The mechanical characteristics of the VRAM expansion DIMM are 144-pin 8-byte graphics SGRAM SO-DIMM, 3.3 V, 83 MHz/12 ns or faster.

Note: The internal display on the Power Macintosh G3 All-in-one does not support all resolutions listed on the chart, although the video controller does. To select a resolution other than those supported by the internal display, an external monitor that supports the resolution will have to be connected.

Screen Resolution, in Pixels	Vertical Refresh, Hz	Horizontal Refresh, kHz	Maximum Number of Colors
			2 MB SGRAM	4 MB SGRAM	6 MB SGRAM
512 x 384	70	31.488	16.7 Million	16.7 Million	16.7 Million
640 x 480	60	31.469	16.7 Million	16.7 Million	16.7 Million
640 x 480	67	35.000	16.7 Million	16.7 Million	16.7 Million
640 x 480	72	37.861	16.7 Million	16.7 Million	16.7 Million
640 x 480	75	37.500	16.7 Million	16.7 Million	16.7 Million
640 x 480	85	43.269	16.7 Million	16.7 Million	16.7 Million
640 x 870	75	68.850	32,768	16.7 Million	16.7 Million
800 x 600	56	35.156	16.7 Million	16.7 Million	16.7 Million
800 x 600	60	37.879	16.7 Million	16.7 Million	16.7 Million
800 x 600	72	48.077	16.7 Million	16.7 Million	16.7 Million
800 x 600	75	46.875	16.7 Million	16.7 Million	16.7 Million
800 x 600	85	53.674	16.7 Million	16.7 Million	16.7 Million
832 x 624	74.5	49.725	16.7 Million	16.7 Million	16.7 Million
1024 x 768	60	48.363	32,768	16.7 Million	16.7 Million
1024 x 768	70	56.476	32,768	16.7 Million	16.7 Million
1024 x 768	75	60.023	32,768	16.7 Million	16.7 Million
1024 x 768	75	60.241	32,768	16.7 Million	16.7 Million
1024 x 768	85	68.677	32,768	16.7 Million	16.7 Million
1152 x 870	75	68.681	32,768	16.7 Million	16.7 Million
1280 x 960	75	75.000	256	32,768	32,768
1280 x 1024	60	63.981	256	32,768	32,768
1280 x 1024	75	79.976	256	32,768	32,768
1280 x 1024	85	91.146	256	32,768	32,768
1600 x 1200	60	75.000	256	32,768	32,768
1600 x 1200	65	81.250	256	32,768	32,768
1600 x 1200	70	87.500	256	32,768	32,768
1600 x 1200	75	93.750	256	32,768	32,768
The following five configurations are available only on Power Macintosh G3 computers with the revision 2 logic board. (This excludes the Power Macintosh G3 All-in-one computer.)
1280 x 960	75.000Hz	75.000kHz	8	16	32
1280 x 1024	75.025Hz	79.976kHz	8	16	32
1280 x 1024	85.024Hz	91.146kHz	8	16	32
1920 x 1080	59.994Hz	70.313kHz	8	16	16
1920 x 1080	71.992Hz	84.375kHz	8	16	16