From: Marc S. <mar...@mp...> - 2002-05-24 08:14:27
|
> - Any idea what the practical difference between a GeForce 3 and > a Quadro 2 would be? I have the GeForce right now, using NVidia's > drivers; I'm planning on yanking the Quadro 2 from a machine we bought as > a server. Would I see any actual performance gain? Which chip is > actually faster, at least for what I'd be using it for? As far as I know, the only differences between a GeForce2 and a Quadro 2 can be: -Different memory clock, but this depends on the actual board you have. Many "high-end" GeForce2-boards have a even higher mem-clock than the Quadro-boards if I recall it correctly -OpenGL-hardware-stereo (at least under Windows) -Accelerated drawing of antialiased lines (which is by default crippled or disabled on the GeForce2). Would make sense if you are looking at chicken-wire-electron-density maps or line-drawings of your molecule a lot, or if you are using CAD. Otherwise it would not make much sense. The underlying hardware (i.e. the GPU itself) should be identical except for some patched registers which identify one as a GeForce and the other as a Quadro (enabling the above-mentioned features). Performance-differences (at least in the consumer-sector) normaly arise from the surrounding stuff, i.e. type of graphics-memory, clockspeeds (memspeed beeing more important than GPU-speed, as the GeForce is bandwith-limited) etc. Bottomline: I would not expect a huge performance-improvement. Hope this helps. -- Bye, Marc Saric Max-Planck-Institut fuer molekulare Physiologie Otto-Hahn-Str.11 44227 Dortmund phone:0231/133-2168 |
From: Gareth S. <ga...@eb...> - 2002-08-14 14:19:26
|
Is there a simple way to colour each object currently loaded, with a different colour (in the same way that you can colour each chain in a molecule differently)? This would be really useful in visualising a set of superposed structures. Gareth -- ----------------------------------------------------------------------------- Gareth Stockwell PhD student, Thornton Group EMBL - European Bioinformatics Institute Wellcome Trust Genome Campus Hinxton Cambridge CB10 1SD ga...@eb... Tel 01223 492548 Personal homepage: http://www.ebi.ac.uk/~gareth |