[comp.sys.ibm.pc.hardware] XGA video-boards ?

prvh@oce-rd4.oce.nl (P. v. Houten) (02/21/91)

I've got to know what the new XGA video-boards from IBM can produce.
Can it display 24bit full color pictures?
What are the resolutions, and what are the maximum number of colors at
these resolutions?
Is there the possibility to dubble-buffer (needed for animations)?
How much does it costs?
What sort of PC do you need for this card?

ganter@urz.unibas.ch (02/21/91)

In article <3126@oce-rd1.oce.nl>, prvh@oce-rd4.oce.nl (P. v. Houten) writes:
> I've got to know what the new XGA video-boards from IBM can produce.
> Can it display 24bit full color pictures?

Yes.

> What are the resolutions, and what are the maximum number of colors at
> these resolutions?

> What sort of PC do you need for this card?

> How much does it costs?

This card is another unsuccessful idea of Big Blue to show, that 
they still exist. As far as I know it is a SVGA (640x400x256, whouw !, 
800x600x16 and 1024x768x16) and 320x200x2^24 (2nd whouw). 
To work with a card like this must be a torture...

You need a PC with the famous three letters, because it is an MCA card.
 
Price ? Again, remember the three letters.

Robert

Robert Ganter
University of Basel
Switzerland
ganter@urz.unibas.ch

mdellomo@dash.mitre.org (Michael Dellomo) (02/22/91)

>In article <3126@oce-rd1.oce.nl>, prvh@oce-rd4.oce.nl (P. v. Houten) writes:
>> I've got to know what the new XGA video-boards from IBM can produce.
>> Can it display 24bit full color pictures?
Yes.

>> What are the resolutions, and what are the maximum number of colors at
>> these resolutions?
I don't remember

>> What sort of PC do you need for this card?
I think you need a MCA bus ... for now (clone makers will probably supply EISA
in the near future

>> How much does it costs?
somewhere between $1000 - $1400 i think

Rather than blast IBM let me just say this:
You can probably find all the answers you want in Byte jan. or feb. 1991.

In its most limited state, I believe, it acts like SVGA. but then there are
other things it does that look like real high end video. Read the article
and draw your own conclusions.  

Mike Dellomo
mdellomo@mitre.org

brian@cunixf.cc.columbia.edu (Brian Hoffman) (02/22/91)

In article <1991Feb21.143622.1390@urz.unibas.ch> ganter@urz.unibas.ch writes:
>In article <3126@oce-rd1.oce.nl>, prvh@oce-rd4.oce.nl (P. v. Houten) writes:
>> I've got to know what the new XGA video-boards from IBM can produce.
>> Can it display 24bit full color pictures?
>
>Yes.
>
>> What are the resolutions, and what are the maximum number of colors at
>> these resolutions?
>
>> What sort of PC do you need for this card?
>
>> How much does it costs?
>
>This card is another unsuccessful idea of Big Blue to show, that 
>they still exist. As far as I know it is a SVGA (640x400x256, whouw !, 
>800x600x16 and 1024x768x16) and 320x200x2^24 (2nd whouw). 
>To work with a card like this must be a torture...
>
>You need a PC with the famous three letters, because it is an MCA card.
> 
>Price ? Again, remember the three letters.
>
>Robert
>
>Robert Ganter
>ganter@urz.unibas.ch

If all you are going to do is rag on IBM, do it someplace else.  It wouldn't
be as bad if you were even partly right, but when you consider that your facts
were wrong combined with your blatant IBM bashing, it makes you look very
stupid.

XGA can do 1024x768x256 interlaced and 640x480x64000.  I'm sure it also does
some in-between resolutions, but I'll try not to post incorrect info.

As you can see, XGA does not do 24 bit color.

Robert is correct in that the card only runs on MCA machines.  I don't know
the answer to your animation question.



|Brian Hoffman								|
|brian@cunixf.cc.columbia.edu						|
|Quote: "Here comes the quiet life, again" -- Japan                     |

fenger@buster.uucp (Steven V Fenger) (02/23/91)

In article <1991Feb21.143622.1390@urz.unibas.ch> ganter@urz.unibas.ch writes:
>In article <3126@oce-rd1.oce.nl>, prvh@oce-rd4.oce.nl (P. v. Houten) writes:
>> I've got to know what the new XGA video-boards from IBM can produce.
>> Can it display 24bit full color pictures?
>
>Yes.

No.  The maximum color redition is 64K colors on screen from the usual
256K pallete.  I think this extended color mode works only at 640x480.

>> What are the resolutions, and what are the maximum number of colors at
>> these resolutions?

The usual VGA resolutions plus 1024x768 interlaced.  All resolutions are
in 256 colors.  It can run 8514/A-specific apps.

>> What sort of PC do you need for this card?

Only a PS/2 version is out.

>> How much does it costs?

The usual range for graphics coprocessor boards ($900-$1500.)  It might
be a bit cheaper.

>[IBM bash deleted (although I'm not defending IBM :)]
>
>Robert Ganter

This board doesn't have an 800x600 mode because it is NOT a SuperVGA
board.  This is basically what the 8514/A standard should have been,
although it is STILL interlaced at 1024x768.  It comes with a Windows
1024x768x256 driver and was developed with Windows in mind.  XGA also
has some sort of buffering scheme as it will be part of the DVI package.
One last thing:  IBM is talking to VESA about providing a VESA driver
and IBM is being rather open on the design specs.

Steven Fenger
fenger@cps.msu.edu

bill@polygen.uucp (Bill Poitras) (03/02/91)

In article <1991Feb21.210212.25694@cunixf.cc.columbia.edu> brian@cunixf.cc.columbia.edu (Brian Hoffman) writes:
>XGA can do 1024x768x256 interlaced and 640x480x64000.  I'm sure it also does
>some in-between resolutions, but I'll try not to post incorrect info.
>
>As you can see, XGA does not do 24 bit color.
>
>Robert is correct in that the card only runs on MCA machines.  I don't know

In the Febrary 25th issue of PC-WEEK there is an aritcle about how IBM
intends to liscense XGA technology to OEM's, which will give birth ISA
XGA boards.  IBM also intends to get non-interlaced 1024x768 mode in
there too.

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