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Thread: Revit Hardware : Video Graphic Cards

  1. #21
    Administrator Gordon Price's Avatar
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    Bimman,
    unless someone can chime in with a driver suggestion for that card, you may be back to the age old game of "Try a driver for a week, if it works, great, if it doesn't try another..."

    However, be aware that the 3GB switch can have a negative impact on OS stability, even while having a positive impact on Revit stability. It is, to put it bluntly, a kludge. And at 1 GB of RAM I would expect that v4800 to perhaps never work with the 3GB switch. Basically what that switch does is give applications the impression they have their own 3 GB RAM playground. But it also tells Windows to play in a 1 GB playground (because in 32 bit Windows 4 GB of address space is all you get). Well, Windows also has to address video RAM, and that comes out of the 1 GB you have given Windows. And Windows needs at least 512 MB of that 1 GB for itself, and another 100 MB or so for the network card. Which when added to say 512 MB for video RAM addressing, puts you over the 1 GB that is left for Windows. Thus the old advice to never use a graphics card over 256 MB of RAM if you are using the 3GB switch. You can tweak the ratio a bit using the USERVA switch, but even that gets to be a huge amount of work trying to find the right settings, matched with the right driver, and the mix changes with a new build of Revit and you might have to start over. And when you don't have the right settings the result eventually is a crash and lost work. At some point you kinda give up the kludge and solve the actual problem. And if you are indeed working in models large enough that the 3GB switch is required (over 100 MB on disk and it starts becoming an issue), then the only real answer is to move to 64 bit Windows and Revit, and up your RAM to a more appropriate level. I know now is a bad time to be spending money, and a switch to 64 bit also means a switch to Windows 7, which is no small undertaking. BUT, if you are reaching the point where file size is consistently affecting stability there really is no other answer. Well, other than simply forcing yourselves to build smaller models, which is made harder with each new version of Revit. And hard because as people get better at Revit, the logical thing to do is to put more info in the model, which makes it bigger. I think it is much better to get good machines and let people work with fewer limitations.

    Think of it this way. You have a kid who is a great driver. In fact, she is good enough to race. Sadly, she has outgrown the '76 Ford Pinto she learned in and it may be time to get a proper race car and turn her loose on the track. And putting a 600 HP Formula 1 engine in that Pinto probably won't actually result in a good, fast race car.

    Gordon

    EDIT: I was just thinking, if these are new T1500 and they came with 32 bit Windows 7, then your upgrade path to Windows 7 x64 is much easier. Well worth considering if that is the case.
    Last edited by Gordon Price; January 11th, 2011 at 10:35 PM.

  2. #22
    New Member Bimman's Avatar
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    yes we are using win 32, xp prof sp3. the T1500 is the only one we have that is in our struc dept. the six architectue computers(one of which i use) are all T3400 about 2 years old. we are all maxed at 4 gig. looks like looking into 64 bit may be our path. we ahve done 6 projects in the last 2 years with revit. from new builds to complete rehabs. all gov work. so our rehab models are full or existing models, demo models and new construction all mixed in with phasing and design options. the current project is the largest. the central file is around 260 megs last time i looked and we are at 95% percent, so it should get to much larger. if crashing starts back up again I will def make the push for 64 bit.

    gordan i like the race car comparison, i think i will use that when i goto make the push.

    thanks for the info, very helpfull

  3. #23
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    I am looking at a new purchase and the only options offered by dell are as follows:

    1GB ATI® Radeon™ HD 5450 graphics card [Included in Price]
    Nvidia ® GeForce GT 420 1GB DDR3 Graphics Card [add £40.00]
    1GB ATI® Radeon™ HD 5670 graphics card [add £60.00]

    None are on the compatibility list - but are there any good/bad on these cards?

    Any advice gratefully welcomed!

    Thanks


    James

  4. #24
    Administrator Munkholm's Avatar
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    Hi James.

    While we wait for Iru69 or someone else who knows more about HW to show up, I can tell you that I´m using a ATI Radeon HD5770 1GB which is working fine, with 20-200 mb .rvt files - though with 10 seconds of "flickering*" each other day.

    (* = the bottom toolbar "dances" around, and Revit locks for 10 seconds, but after that, everything is running smoothly again)

  5. #25
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    I'm also trying to figure out the latest on nVidia vs ATI. At BCIT (local college where I teach Revit) I get a lot of students either buying laptops or trying to install them on their laptops. Lots of new hardware. On the Macbook Pros with nVidia we're having a devil of a time getting them to work right, even in Boot Camp. Weird flashing when panning -- HWA just doesn't seem to work. This is with Win 7 x64. Another student just got a new XPS 15 with the nVidia Geforce GT420M -- same thing. Weird artifacting at the cursor, and just general display unhappiness. Users using desktop hardware seem to be having a better go with nVidia though.

    We have two Dell laptops at the office using the Radeon HD 4670, and we get the status bar dance of insanity a couple of times a day. That was tempting me to recommend nVidia to people, but I'm seeing more hits than misses with laptop Geforce graphics under Win 7. I'd love to give Octane Render a go and make use of nVidia CUDA technology at some point.

  6. #26
    Administrator Ian.Kidston's Avatar
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    Hi James,

    Not quite the same spec as you are considering. but I have recently - last week - purchased a new computer running a NVidia GTX-460 card. Driver Version 266.58.

    No problems whatsoever at this stage. Spins like a dream in shaded view shadows on - no artifacts or jumping status bar.

    Cheers,

  7. #27
    Member Chadwick17's Avatar
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    Just to throw my experience in as well...

    I've been running an ATI HD 5870 and haven't been having any problems at all with graphics display in Revit. I model with shadows on as well. Revit does say that it is unsupported when I start it up but I haven't found any problems with the card at all.

  8. #28
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    Hello ...

    so .. new use here from France

    Test on HD 5700 Series (ATi/AMD) (5770 HD with 1.0 Gb memory), Revit Architecture 2011 SP2

    Run correctly... more stable that the old card (Nvidia 9500GT 512 Mo)

    RA 2011 x64 on Windows 7 x64 (8Gb memory)

  9. #29
    Senior Member sdbrownaia's Avatar
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    nvIDIA fx580 -Revit 2011 - Windows 7 64bit - I've tried many drivers at NVidias site and the 197.03 that is adsk approved and they all have issues on our bigger models with lots of hatches. complex ceiling plans and roof plans seem to crash it often.

  10. #30
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    GPU: GeForce GTX 8800
    Windows version: 7 64 bit
    Versions of Revit: RAC 2011, RAC 2010, 2009 (we have clients using old versions)
    Driver version: 258.96 (current) tried 266.58 (NVIDIA's latest for this card) was on 197.45

    This card is not behaving well, the looping of the worksets bar and general graphics is not good. I was having a problem where any object that I moused over stayed pre-highlighted. This was with the 197.45 driver. Updated the driver to the latest from NVIDIA, 266.58, and had Revit not open at all or open in a very small window. So I updated to the oldest driver that I could find on NVIDIA's site, 258.96, and the pre highlighting is solved but now Revit 2011 crashes any time I try to change a Render Appearance for materials.

    Autodesk's recommended driver list only has 197.21 listed for this card and it's not recommended for 7. The 197 series is not on NVIDIA's archived driver site. I'm starting to wonder if this video card just won't work well with Windows 7. We don't have much IT staff so I'm in unfamiliar territory here. The render appearance problem is occuring with HWA on and off.

    Hopefully the info helps someone avoid this card. If anyone has any suggestions I'd appreciate them.
    Thanks.
    Kevin

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