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- From: long@mcntsh.enet.dec.com (Rich Long)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: IIci :onboard video or card ?
- Message-ID: <2377@sousa.tay.dec.com>
- Date: 10 Jan 93 22:21:10 GMT
- References: <C0nCA0.Btv@usenet.ucs.indiana.edu>
- Sender: newsa@sousa.tay.dec.com
- Organization: Digital Equipment Corporation
- Lines: 28
-
-
- In article <C0nCA0.Btv@usenet.ucs.indiana.edu>, jgraham@bronze.ucs.indiana.edu (the End) writes...
- >Does the IIci have its own onboard video or does it ship with the Apple
-
- Short answer: you are better off with a video card.
-
- The IIci's on-board video uses part of memory bank A; access to that bank is
- shared between the video controller and the CPU. Therefore, higher bit depths
- can slow the processor down more than you might expect, because the CPU has
- to wait for the video controller to finish accessing the RAM.
-
- Installing a video card has two advantages:
-
- o It eliminates memory contention;
-
- o it frees roughly 300K of system memory (640x480x8).
-
- Running at lower bit depths will help performance due to less memory
- contention. To save memory, in the Monitor Options panel you can set the
- highest bit depth you expect to run at, and the system will reserve only that
- highest potential amount of RAM.
-
- The simplest solution is to buy a video card; 8 bit cards are inexpensive.
-
- +-----------------------------------------------------------------------------+
- Richard C. Long | long@mcntsh.enet.dec.com
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