hi Cameron, Geforce 6800GT and 6800Ultra come with PCI-E interfaces nowadays. Besides, the AGP8x vs PCI-E architecture does not have any significant performance difference for most people according to tests carried out by http://anantech.com, and many others. Your reported advantage in glxgears might not translate into any visible advantage in O or pymol.
The next issue is that XiG does not support Nvidia, whereas Rivatuner supports both ATI and Nvidia. XiG is a commerical product that emulates 3D, whereas Rivatuner is an underground product that tricks the computer into thinking that a Quadro card was installed. Nowadays, chip makers tend to use the same chip across all their product lines to cut cost. Many people have found out that their Geforce GPU is actually an artifically disabled, yet fully functional Quadro GPU chip. Don't be fooled by the marketing and external design, especially when electronics are involved. Electronic manufacturers like Nvidia, ATI, AMD and Intel almost always have higher profit margins for their premium products compared to their low-end products because the same core design is used across their product-lines. -----Original Message----- From: Cameron Mura [mailto:cm...@ucsd.edu] Sent: Thu 7/28/2005 6:18 AM To: Wang Chern Hoe Cc: Philippe BENAS; ccp4bb; pymolbb; Obb Subject: Re: [PyMOL] nVidia Quadro FX 1400, FX 3400 and FX 4400 performances part of this is also the hardware issue of AGP (8x) versus PCI and PCI-express interfaces being used by newer cards on newer boards... so the much higher bandwith of, e.g., using a Quadro FX1400 with a PCI-E x16 makes it far superior (in my experiences, w/ linux) to the nVidia GeForce 6800 GT... (talking >18k FPS versus ~13-14k FPS in glxgears!). with regards to stereo capabilities, after having used things like the XiG drivers to emulate QBS with cards that don't natively support it (e.g., ATI Radeon 8500), i would definitely opt for the card that provides hardware stereo (so i'd rather use the nVidia Quadro 700 XGL rather than the technically superior (but stereo-less) GeForce 6800+XiG summit drivers (or whatever). cameron === Wang Chern Hoe wrote (on 07/27/2005 08:55 AM): === >Hi Philippe, > >If you are using the Windows platform, I suggest you get a Geforce 6800Ultra, >and use rivatuner from http://downloads.guru3d.com/download.php?det=163 to >modify the driver to Quadro FX 4400 under Windows XP. Thereafter, substitute O >with NOC from http://noc.ibp.ac.cn/ and you should have saved several thousand >bucks, increased your graphics card performance, and enabled 3D stereo on a >Geforce card! The same goes for enabling undocumented features on an ATI card. > >The only caveat is that this mod has not been ported over to Linux, and that >your graphic card's warranty will be ineffectual in the event of damage to the >GPU chip. > >best regards >Wang Chern Hoe > > >-----Original Message----- >From: owner-ccp...@dl.ac.uk on behalf of Philippe BENAS >Sent: Wed 7/27/2005 11:13 PM >To: ccp4bb; pymolbb; Obb >Cc: >Subject: [ccp4bb]: nVidia Quadro FX 1400, FX 3400 and FX 4400 >performances >*** For details on how to be removed from this list visit the *** >*** CCP4 home page http://www.ccp4.ac.uk *** > > >Hi Xtallographers, Oers and Pymolers, > >In late January, Warren wrote: "The Quadro FX 3000 is the fastest card >I've ever seen PyMOL run on". Well since then half a year is gone. >So, would any of you had a chance to compare the FX 1400, FX 3400 and >FX 4400 performances for stereo under Linux, I mean for the usual >stereo programs we're using like O, Pymol or Turbo ? > > From several tests I read it seems there is no serious gap between them >at least when compared for various engineering software (Rightmark, 3D >studio Max, AutoCAD, CATIA, Ensight, Maya, Patchwork 3D and >SolidWorks). As for their price there are some huge gaps on the other >hand... > >Which of those 3 Quadro would you recommend in terms of >performance/price ratio for molecular graphics ? > >In his email, Warren also recommended the NEC-Mitsubishi FP2141SB-BK >22" CRT. What do you Folks think about this monitor if you do use it ? >What do you think about the Iiyama HM204 DT DiamondTron 22" CRT ? Any >other good monitor for stereo around that you would recommended ? > >Any help will be greatly appreciated. >Philippe > >------------------------------------------------------------------------ >Philippe BENAS, Ph.D. >X-ray diffraction facility manager >Laboratoire de Cristallographie et RMN Biologiques, UMR 8015 CNRS >Faculte de Pharmacie - Universite Paris 5 >4, Avenue de l'Observatoire - Case 48 >F-75270 Paris cedex 06 >--- >Office: +33.(0)1-5373-9831 (use ext. 9977 instead to leave a voice mail) >Fax: +33.(0)1-5373-9925 >X-ray Room (rotating anode): +33.(0)1-5373-9977 >X-ray Room (small molecules): +33.(0)1-5373-9679 >--- >Url: http://lcrbw.pharmacie.univ-paris5.fr/ >------------------------------------------------------------------------ > > > > > > >DISCLAIMER: >This email is confidential and may be privileged. If you are not the intended >recipient, please delete it and notify us immediately. Please do not copy or >use it for any purpose, or disclose its contents to any other person as it may >be an offence under the Official Secrets Act. Thank you. > > >------------------------------------------------------- >SF.Net email is sponsored by: Discover Easy Linux Migration Strategies >from IBM. Find simple to follow Roadmaps, straightforward articles, >informative Webcasts and more! Get everything you need to get up to >speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click >_______________________________________________ >PyMOL-users mailing list >PyMOL-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/pymol-users > > > -- Cameron Mura UCSD DISCLAIMER: This email is confidential and may be privileged. If you are not the intended recipient, please delete it and notify us immediately. Please do not copy or use it for any purpose, or disclose its contents to any other person as it may be an offence under the Official Secrets Act. Thank you.
