home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!usc!elroy.jpl.nasa.gov!ames!agate!sunspot.ssl.berkeley.edu!daver
- From: daver@sunspot.ssl.berkeley.edu (David Ray)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: LC video RAM upgrade
- Date: 2 Sep 1992 00:42:13 GMT
- Organization: /etc/organization
- Lines: 24
- Message-ID: <1812l5INNqr2@agate.berkeley.edu>
- References: <37.2aa3f6a1@ivgate>
- NNTP-Posting-Host: sunspot.ssl.berkeley.edu
-
- In article <37.2aa3f6a1@ivgate> leonard.short@macrocosm.omahug.org writes:
- > Scott Hudziak asked of all
- > SH> I have an LC with "256k video RAM, upgradable to 512k"...
- >
- >It has been
- >my experiance that the new video ram will slow down the computer somewhat. Also
- >quite a few programs will display 256 colors at most so unless you are doing
- >something that needs 16 bit color, you will be giving up some speed and getting
- >questionable benifits.
-
- With a 512k VRAM you get 256 colors on a 640x480 display (13" Apple RGB), or a
- zillion (<2 million) colors on a 512x384 display (12" Apple RGB). So you in
- fact do need this SIMM for 256 colors on a 640x480. The 256k VRAM only gets
- you 256 colors on a 512x384 display.
-
- I have always assumed tha the loss of speed is from the additional color
- calculations. You can always restore the speed of the computer
- back to faster speed by selecting fewer colors to be displayed with the
- Monitors control panel. You get the same computer speed at the same
- number of colors selected, regardless of whether you have a 512k or 256k
- VRAM SIMM. Its only slower if you choose to use a greater number of colors.
-
- -dave
-
-