The following table defines the maximum color depths available for a given resolution and memory size.
| Monitor | Resolution | Max Colors
2 MB VRAM* | Max Colors
4 MB VRAM* |
| 12-in. Monochrome | 640x480 | 256 grays | 256 grays |
| 12-in. RGB** | -- | -- | -- |
| 13-in. Color | 640x480 | Millions | Millions |
| 15" Portrait Monochrome | 640x870 | 256 grays | 256 grays |
| 16-in. Color | 832x624 | Millions | Millions |
| Multiple Scan 15 | 640x480
832x624 | Millions
Millions | Millions
Millions |
| Multiple Scan 17 | 640x480
832x624
1024x768 | Millions
Millions
Thousands | Millions
Millions
Millions |
| 19-in. RGB | 1024x768 | Thousands | Millions |
Two-Page Monochrome
Monitor (21-in.Mono) | 1152x870 | 256 grays | 256 grays |
| 21-in. Color | 1152x870 | Thousands | Millions |
| Multiple Scan 20 | 640x480
832x624
1024x768
1152x870
1280x1024 | Millions
Millions
Thousands
Thousands
256 | Millions
Millions
Millions
Millions
Thousands |
| VGA | 640x480 | Millions | Millions |
| SVGA | 800x600 | Millions | Millions |
| VESA Standard Modes | 800x600
1024x768 60Hz
1024x768 70Hz
1280x1024 60Hz
1280x1024 75Hz | Millions
Thousands
Thousands
256
256 | Millions
Millions
Millions
Thousands
Thousands |
*256 = image depth of 8 bits, thousands = image depth of 16 bits, millions = image depth of 32 bits.
**The Macintosh 12-in. RGB display cannot be used with the Power Macintosh 9500 series. |
NOTE: The "Technical Information: Specifications for Power Macintosh 9500 Series Computers" booklet that ships with the Power Macintosh 9500 contains some minor inaccuracies:
- The Macintosh 12-in. RGB display is incorrectly listed as compatible.
- The maximum color depth at 1280x1024 with 2 MB of VRAM is 256 colors.
- The maximum color depth at 1024x768 with 2 MB of VRAM is "Thousands."
IMPORTANT NOTE:
To order a VRAM memory module upgrade please call ATI Technologies, Inc. This upgrade is not available from Apple Computer, Inc. It is not supported or serviced by Apple Computer, Inc. At the time of this writing the 2 MB VRAM upgrade was ATI part number 100-31602-00. This information is subject to change. Please call the vendor for changes and details.
The Tech Info Library article titled "Locating Vendor Information" can help you search for a particular vendor's address and phone number.