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===Video===
 
===Video===
 
The video RAM (VRAM) in the Macintosh Quadra 950  uses 80 ns devices instead of the 100 ns devices used in the [[Macintosh Quadra 900]]. The video controller (DAFB) has been reprogrammed to take advantage of the faster VRAM, speeding up video performance by as much as 20%. That speed increase is in addition to the increase due to the 33 MHz processor speed. The cumulative increase in video performance can be as much as 50% overall.
 
The video RAM (VRAM) in the Macintosh Quadra 950  uses 80 ns devices instead of the 100 ns devices used in the [[Macintosh Quadra 900]]. The video controller (DAFB) has been reprogrammed to take advantage of the faster VRAM, speeding up video performance by as much as 20%. That speed increase is in addition to the increase due to the 33 MHz processor speed. The cumulative increase in video performance can be as much as 50% overall.
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Like the [[Macintosh Quadra 900]], the Macintosh Quadra 950  comes with 1 MB of video RAM (VRAM) and sockets for expanding the VRAM to a total of 2 MB. The 1-MB VRAM  configuration supports up to 24 bits per pixel on Apple’s 12-inch RGB monitor, 16 bits per pixel on the 13-inch and 16-inch RGB monitors, and 8 bits per pixel on 21-inch Apple monitors. The 2-MB VRAM configuration supports up to 24 bits per pixel on Apple’s 12-inch, 13-inch, and 16-inch RGB monitors and 16 bits per pixel on Apple’s 21-inch RGB monitor. The Macintosh Quadra 950 also supports 19-inch monitors with 1024 by 768 pixel displays. With 2 MB of VRAM, the Macintosh Quadra 950 supports up to 16 bits per pixel on such monitors.
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===PDS===
 
===PDS===
 
The PDS attaches to the pins of the MC68040 without any buffers. For a PDS card to operate properly in the Macintosh Quadra 950 , the card must be capable of meeting the 33 MHz timing specifications of the MC68040.
 
The PDS attaches to the pins of the MC68040 without any buffers. For a PDS card to operate properly in the Macintosh Quadra 950 , the card must be capable of meeting the 33 MHz timing specifications of the MC68040.

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