Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!mit-eddie!media-lab!mit-caf!rajeev
From: rajeev@mit-caf.MIT.EDU (Rajeev Jayavant)
Newsgroups: comp.sys.dec
Subject: X performance on DEC5000
Message-ID: <5239@mit-caf.MIT.EDU>
Date: 14 Oct 90 02:47:00 GMT
Reply-To: rajeev@caf.mit.edu
Distribution: na
Organization: Microsystems Technology Laboratories, MIT
Lines: 19

Does anyone out there know how the X performance of a DEC 5000/200CX
compares with a 5000/200PX?  I know that the PX graphics subsystem
utilizes the PixelStamp chipset to perform scan conversion, but does
the X server take advantage of this hardware?  Is there any hardware
in the PX that is designed specifically with X performance in mind, or
does the PX address other graphics API's, e.g. PHIGS?

On a related note, how does the X performance of the 3D systems (the
PXG and PXG-turbo) compare to the 2D systems?  Did DEC make sacrifices
in X performance in order to speed up the 3D cases?  It appears that
IBM made exactly that kind of tradeoff in their offerings for the
RS6000 line.....

Thanks for any info!

--Rajeev
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ARPA: rajeev@caf.mit.edu		        UUCP: ....!mit-eddie!caf!rajeev
"Do they think we can be frightened by men with plastic noses?"  -  Genghis Rex