Hello Robert, Yeah, I was very surprised as well. The Quadro cards that I tried were the FX3500 and FX5500. Both giving very similar results. It's been some time since I went through this, but I believe that the drivers were various versions of 97.x and 98.x. And in all cases (both Quadro and GeForce), the OS was Windows XP. The other hardware specs (for both the Quadro and GeForce machines) as I recall were dual Intel Xeon processors (don't recall the speed), and 2GB RAM. I do have to correct my original email though as it was a GeForce 7900GTX card, not a 8800GTX, that I was able to get such good performance.
I was so surprised that I tried numerous driver versions, driver settings, even added additional RAM. None of these permutations seemed to have had any significant positive impact on performance. But, just to add, I also found that even the 3DLabs Wildcat VP 990 card outperformed the Quadro FX5500. And there are generation gaps between those cards, not to mention cost differences. Not to knock nVidia as I much prefer their cards, but based on my experience, there's no way that I can justify buying a Quadro FX5500 card ($3000 price tag at the time) or current equivalent over a GeForce 7900GTX (around $500). Especially when the GeForce card blows the Quadro away with my applications. Of course, now I'd go with a GeForce GTX 280. :-) chuck > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:osg-users- > [EMAIL PROTECTED] On Behalf Of Robert Osfield > Sent: Friday, October 03, 2008 8:44 AM > To: OpenSceneGraph Users > Subject: Re: [osg-users] nVidia graphics cards - GeForce or Quadro > > Hi Chuck, > > Curious results, I wouldn't have expected such a disparity, and I'd > guess this is down to driver issues as the GPU's are essentially the > same across Quadro and Geforce lines. What hardware and OS were you > using in these comparisons? > > Robert. > > > On Fri, Oct 3, 2008 at 1:26 PM, Cole, Charles E. (LARC-B702)[GENEX > SYSTEMS] <[EMAIL PROTECTED]> wrote: > > Hello Stephen, > > > > Let me preface my response by saying I have not done any scientific > > analysis, just my experience with my particular application. I > > currently develop using a mix of OSG and OpenGL. The OSG is used to > > draw scenes using TerraPage-based terrains. OpenGL is used to draw > > custom drawables such as gauges, readouts, etc. > > > > With that, I've seen great disparity in the rendering performances > > between Quadro and GeForce cards (primarily using frame rate as the > > measure of performance). On the Quadro cards, even up to the Quadro > > FX5500, I was highly disappointed with the performance. I was only able > > to get a 30-Hz frame rate with a single camera view. I did try > > different drivers, different resolutions, different driver settings, > > etc. on the Quadro, but I could not ever get any better performance. > > With the GeForce cards (for comparison, the GeForce 8800GTX), I was able > > to get almost 60-Hz frame rate, with two separate camera views (i.e., > > two separate windows), and at a higher resolution (color depth was the > > same), and with max'd antialiasing. > > > > My guess is that the GeForce cards are able to handle the textures > > better. But this is only a guess based on my particular experience. > > And this is based purely on observation rather than any in-depth > > testing. > > > > If I was to spec a computer for the use of the applications I develop, > > I'd spec a high-end GeForce card over the highest Quadro card without > > question. > > > > Not sure if that helps, it's just my particular experience. > > > > chuck > > > >> -----Original Message----- > >> From: [EMAIL PROTECTED] [mailto:osg-users- > >> [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > >> Sent: Thursday, October 02, 2008 5:28 PM > >> To: osg-users@lists.openscenegraph.org > >> Subject: [osg-users] nVidia graphics cards - GeForce or Quadro > >> > >> > >> Based on benchmarks, it seems that the high end gaming graphics cards > >> (i.e. > >> GeForce GTX 280) tend to lead the Quadros in performance claims on > > most > >> games. > >> I suspect the this is because there is a broader game market, and the > >> time/cost with getting Quadro cards certified for the list of CAD and > >> modeling apps. > >> On the other hand, the Quadro cards claim to be better at DCC, CAD, > > etc., > >> and tuned for OpenGL. > >> > >> That leaves me with the question of whether the additional cost and > >> delayed > >> development cycle of the Quadros are worth the cost for a fairly level > >> comparison. > >> I am considering a system with 1 or 2 GeForce GTX 280s for use with > >> OpenSceneGraph based apps - primarily IGs/viewers like MPV operating > > on > >> terrains with entitiies. > >> > >> I have researched specs and the such, but still can't figure out the > > real > >> answer. Can any of the experts out there provide any suggestions? > >> > >> Thanks, > >> > >> Stephen > >> > >> > >> > >> > >> This is an e-mail from General Dynamics Land Systems. It is for the > >> intended recipient only and may contain confidential and privileged > >> information. No one else may read, print, store, copy, forward or act > > in > >> reliance on it or its attachments. If you are not the intended > > recipient, > >> please return this message to the sender and delete the message and > > any > >> attachments from your computer. Your cooperation is appreciated. > >> > >> _______________________________________________ > >> osg-users mailing list > >> osg-users@lists.openscenegraph.org > >> > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or > > g > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > http://lists.openscenegraph.org/listinfo.cgi/osg-users- > openscenegraph.org > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
