RE: [PyMOL] nVidia Quadro FX 1400, FX 3400 and FX 4400 performances

[Wang C. H. <che...@im...>]

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...@uc...]
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=20
PCI-express interfaces being used by newer cards on newer boards... so=20
the much higher bandwith of, e.g., using a Quadro FX1400 with a PCI-E=20
x16 makes it far superior (in my experiences, w/ linux) to the nVidia=20
GeForce 6800 GT... (talking >18k FPS versus ~13-14k FPS in glxgears!).=20
with regards to stereo capabilities, after having used things like the=20
XiG drivers to emulate QBS with cards that don't natively support it=20
(e.g., ATI Radeon 8500), i would definitely opt for the card that=20
provides hardware stereo (so i'd rather use the nVidia Quadro 700 XGL=20
rather than the technically superior (but stereo-less) GeForce 6800+XiG=20
summit drivers (or whatever).=20

cameron


=3D=3D=3D Wang Chern Hoe wrote (on 07/27/2005 08:55 AM): =3D=3D=3D

>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=3D163 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.=20
>
>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:	own...@dl... on behalf of Philippe BENAS
>Sent:	Wed 7/27/2005 11:13 PM
>To:	ccp4bb; pymolbb; Obb
>Cc:=09
>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=20
>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=20
>FX 4400 performances for stereo under Linux, I mean for the usual=20
>stereo programs we're using like O, Pymol or Turbo ?
>
> From several tests I read it seems there is no serious gap between =
them=20
>at least when compared for various engineering software (Rightmark, 3D=20
>studio Max, AutoCAD, CATIA, Ensight, Maya, Patchwork 3D and=20
>SolidWorks). As for their price there are some huge gaps on the other=20
>hand...
>
>Which of those 3 Quadro would you recommend in terms of=20
>performance/price ratio for molecular graphics ?
>
>In his email, Warren also recommended the NEC-Mitsubishi FP2141SB-BK=20
>22" CRT. What do you Folks think about this monitor if you do use it ?=20
>What do you think about the Iiyama HM204 DT DiamondTron 22" CRT ? Any=20
>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/
>------------------------------------------------------------------------=

>
>
>
>
>
>
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> =20
>

--=20
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.