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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!mcsun!sun4nl!star.cs.vu.nl!mgvdmeer
- From: mgvdmeer@cs.vu.nl (Marcel v.d. Meer)
- Subject: Video Cards, a summary
- Message-ID: <C1935M.DBG@cs.vu.nl>
- Sender: news@cs.vu.nl
- Organization: Fac. Wiskunde & Informatica, VU, Amsterdam
- Date: Fri, 22 Jan 1993 10:15:20 GMT
- Lines: 136
-
- (Sorry 'bout all those ^M's, I typed it in Dos :(
-
- Below follows an excerpt I have made from a recent (jan. 12 issue)
- Video card test in PC-Magazine. I'm sure that in some points,
- either PC-Mag or I got it worng, but you are welcome to make
- corrections In fact, the more, the better).
- I am myself a PC reseller, but since I live in Europe, much
- of this technology hasn't been introduced here.
-
- If someone could post the specific specs of some cards that use
- one of the below chipsets, that would be appreciated. I would
- like to know what cards are available.
-
- Summary follows:
-
- Accelarator/Frame-buffer Chips:
-
- Chip Max Max VRAM/ Image Bus Acc/ Remarks
- Clr Mem DRAM size FB
-
- S3 86c911 16-bit 1 Mb VRAM 16-bit All Acc
- S3 86c924 24-bit 1 Mb VRAM 16-bit All Acc c911 Compatible
- S3 86c801 24-bit 2 Mb DRAM 32-bit ISA Acc
- S3 86c805 24-bit 2 Mb DRAM 32-bit EISA/LB Acc VLB var. of c801
- S3 86c928 24-bit 4 Mb VRAM 32-bit All Acc Optimized for VLB
-
- MACH 32 32-bit 4 Mb V/R 32-bit All Acc
- ET4000/W32 32-bit 4 Mb DRAM 32-bit All Acc
- 90c31-LR 24-bit 1 Mb DRAM 16-bit All Acc Low-cost
- 90c33 24-bit 2 Mb DRAM 32-bit VLB Acc
-
- GD5422 ?? 1 Mb DRAM 16-bit ISA FB
- ET4000 24-bit 1 Mb DRAM 16-bit All FB New rev. G avail.
-
- Performances:
-
- Chip Bus V/R Dos Acad Win
-
- S3 86c911 ISA VRAM 1.2-1.7 6.8-12.8 3.3-3.6
- S3 86c924 ISA VRAM 1.7-2.1 1.5-9.5 3.5-4.6
- S3 86c801 ISA DRAM 3.0-4.0 6.9-12.8 5.3-7.1
- S3 86c805 VLB DRAM 7.0 15.3 2.9
- S3 86c928 ISA VRAM 3.7 9.5 5.6
-
- MACH 32 ISA DRAM 4.3 5.8 6.3
- MACH 32 ISA VRAM 4.0 9.5 6.5
- MACH 32 VLB VRAM 8.0 12.3 18.3
-
- GD5422 ISA DRAM 6.0-6.0 3.4-4.9 2.2-2.6
- 90c31-LR ISA DRAM 4.6-6.0 2.1-5.4 2.6-4.9
-
- ET4000 ISA DRAM 4.5-6.0 1.0-4.4 1.4-1.6
- ET4000 EISA DRAM 6.0 1.0 1.4
- ET4000-G VLB DRAM 10.9 NA 3.2
- ET4000/W32 VLB DRAM 10.9 NA 5.7
-
- - When more than 1 card was tested, min. & max. performance is given
- - The results of the autocad test are 1000 / PC-Mag result, this
- to give a performance where the higher number is better
- PC-Mag graphics winmark: 1024x768, 256 color
-
- Note 1 All 256 color modes (640x480/800x600/1024x768) give about
- the same Windows speed in relation to each other
-
- Note 2 The below conclusions are my own and do not
- necessarily agree wit those of the PC-Mag test-team
-
-
- Conclusions:
-
- All users:
- Clearly, VESA Local-bus cards can offer a tremendous performance
- increase. If you're upgrading your motherboard or buying a new
- machine, and think about getting a 486, be sure toget a VLB-machine
- and either buy a cheap card now and a well-developed VLB-card later
- or buy a VLB-car now.
-
- Whatever card you fancy, get all the facts straight:
- RAM-DAC's, driverss etc. are constantly changing.
- Be sure to get good drivers for the software you plan to use.
- When a certain chip has some qualities (like 24-bit color) but
- the card you're interested in, doesn't support them, think
- about waiting until it does or to look for another card with
- the same chip. Also, alot of times, better/faster drivers
- can be found on some FTP-sites. This can dramatically increase
- the performance/stability of some systems.
-
- Acad users:
- The above might now be entirely true for you. The difference
- in performance is quite low, BUT most Cad systems (which
- are mostly 486 systems) are now VLB systems. if you already
- have a ISA/EISA system, you don't have to bother to update to
- VLB though.
-
- Dos-users:
- There best of using a relatively simple frame-buffer VGA card.
- VLB-owners (to be) should be on the lookout for a Tseng ET4000
- VLB card, it's blindingly fast at relatively low-price.
- ISA users should check out a Cirrus GD5422 or Tseng ET-4000
- based cards.
-
- GUI-users:
- Their best bet (at the moment) is a Accelarator card, which
- offers good Dos-performance while profiding special hardware
- functions to make Windows/OS-2/etc. graphics a lot faster.
-
- Think about either an ATI MACH32 based card (hope they sort
- out their driver problems and put their VLB version out on
- the market for end-users) or a S3 based card.
-
- The S3 cards are basically divided in 2 categories, the 1 Mb VRAM
- versions (911/924) which are currently the most used, but watch
- out for the 801/805 cards, which use cheaper DRAM, but support
- 2 Mb of it, and offer similar performance.
-
- Cards which also to consider are cards which uses C&T's 82c481 in
- combination with their Wingine chip, which offers great windows
- performance. Also, the new to be released ET4000/W32 can be a
- real winner, offering up to 4 Mb of (D)RAM, the same goes
- for the S3 86c928, which should be the best performing S3 card
- yet, using VRAM and optimized for VLB use.
-
- X-Windows-users:
- For you, there are special considerations. Unlike for a lot
- of other GUI's, drivers are often not available. As I understand
- it, correct me if I'm wrong (which I'm sure you will) there
- are (for Linux) only drivers available for the ET-4000 and
- S3 86c911/924, so your choice is limited.
-
-
- With the information above, I hope to have been able to shed some
- light on the current chaos in video-land. Any respons/corrections/etc
- would greatly be appreciated, either via E-mail or via Usenet.
-
- Marcel vd Meer, marcel@mars.let.uva.nl, mgvdmeer@cs.vu.nl
-
-