home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uunet.ca!canrem!dosgate![kenneth.tam@canrem.com]
- From: "kenneth tam" <kenneth.tam@canrem.com>
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: ati ultra vs s3
- Message-ID: <1992Jul21.1488.25667@dosgate>
- Date: 21 Jul 92 22:14:10 EST
- Reply-To: "kenneth tam" <kenneth.tam@canrem.com>
- Distribution: comp
- Organization: Canada Remote Systems
- Lines: 54
-
- 07-21-92 08:29 - Meir I Green wrote to All re: Vesa & local bus, plus...
-
- MIG> From what I have heard, the ATI Ultra is one of the fastest cards
- MIG> around, especially when you are using software that takes advantage of
- MIG> the 8514/A standards. S3 cards are slower than standard VGA cards,
- MIG> unless you have a special S3 driver for them. The ATI (graphics ultra)
- MIG> is faster than normal (ET4000) cards even without special software,
- MIG> because of the fast VRAM, coupled with a fast built in VGA controller.
-
- The Graphics Ultra uses onboard VGA Wonder+ (non-XL) circuitry, which is
- by no means as fast as normal ET4000. It has 1.5 MB of memory -- 1 MB
- VRAM for the accelerated/8514 modes and .5 MB of DRAM for VGA.
-
- Yes, S3 cards are slower than standard VGA cards, but it's quite possible
- you won't notice much of a difference. It depends where your priorities
- are I suppose -- I've used S3's and various "normal" VGA cards and the
- speed difference doesn't bother me..
-
- Note S3 Inc. now has the 86C924 chip available for manufacturers; it's
- fully back compatible with the 86C911 (ie "_the_ S3 chip") and has a
- number of enhancements. Exactly what they are I haven't been able to
- find out.
-
- One big disadvantage with the current Graphics Ultra is the lack of
- hi-color support (15 or 16 bit). This really bites, as it's kind of
- depressing spending that sort of money for a card and not getting a
- nifty feature that's commonly available on $100-$150 cards. If only
- they had used Wonder XL circuitry on it..
-
- OTOH, '911 S3 based cards are slightly cheaper than the Graphics Ultra,
- boast pretty hefty acceleration and tend to support both 15 and/or 16 bit
- hi-color. BUT they don't do 800x600x32K, which is a real killer IMO.
- 640x480x32K or x65K is really only useful for displaying some .TGA pics
- or something -- running an GUI OS in such a low pixel resolution is
- becoming increasingly difficult. Whereas 800x600 is quite usable for
- GUIs..
-
- Most ET4000 boards with hi-color support 800x600x32k or x65k. But
- they aren't accelerated -- so you probably wouldn't want to work in those
- modes even though you can, since they'll be slow..
-
- I think for now, the best compromise is an 8514/A Ultra (no VGA) hooked
- up to a good ET4000 with hi-color, and both cards hooked up to a
- 17"+ monitor with switchable inputs. Pretty hefty $$.
-
-
- kenneth.tam@canrem.com
-
-
- ... A feature is a bug with seniority.
- --- Blue Wave/QWK v2.10
- --
- Canada Remote Systems - Toronto, Ontario/Detroit, MI
- World's Largest PCBOARD System - 416-629-7000/629-7044
-