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Need Advice for NVIDIA GeForce 8800 GT Replacement

I'm having some issues with my current NVIDIA GeForce 8800 GT adapter. I am not too savy when it comes to internal computer components and would like some recommendations for a replacement.
The computer is used for mostly AutoCAD work. I would like to keep the same or better performance without spending a ton.

-ASUS M2N32-SLI Deluxe
-AMD Athlon 64 X2 Dual Core Processor 6400+
-Windows XP
-3.21 GHz, 3.50 GB of RAM
-550W PSU

Any guidance is greatly appreciated.
4 answers Last reply Best Answer
More about advice nvidia geforce 8800 replacement
  1. anything newer will be better... 9800gt/gts/gtx, gtx260/265/280, 460/470/480 any of these can be bought on ebay for $50 to $75.

    I'd get a gtx460 for $60ish used and there you go
  2. A GTX650 would be a good replacement IMHO.
  3. Best answer
    If Autocad behaves anything like other professional applications,
    one would be better off replacing the 8800GT with a Quadro card; even
    an older 1GB Quadro 600 demolishes most modern gamer cards
    for most pro apps. See my benchmark results here:

    http://www.sgidepot.co.uk/misc/viewperf.txt

    However, from results I've found on toms, it looks like Autocad can
    run quite well with a good gamer card, which makes Autocad one
    of the more unusual pro apps in how it behaves (Ensight being the
    other example).

    Note that as with most pro apps, the power of the main CPU can
    also be a limiting factor, as shown by the Pentium G840 + Quadro
    4000 results I added to my page today; notice how in some cases
    performance is nowhere near as good as the same Quadro 4K
    running with a 2700K. ProE, LW and SW inparticular benefit from
    a strong main CPU (especially ProE, which I've been told is only
    single-threaded, so a high-clock dual-core is a good low cost
    option for ProE), and also Maya to a degree.

    As such, with a more powerful GPU for Autocad, you may find
    your main CPU holds back potential performance.

    As it happens, your system is remarkably similar to a PC I built
    for myself a few years ago; it had a 3.25GHz 6000+, ASUS M2N32
    WS Professional, Gigabyte 8800GT, 4GB RAM, etc. (I added a
    second 8800GT later), See:

    http://www.sgidepot.co.uk/misc/mysystemsummary2.txt

    After I discovered it wasn't possible to fit the mbd with a Phenom II
    CPU (no BIOS support), I switched to a P55 setup with an i7 870.
    The performance increase from even one 8800GT was considerable,
    though this was for games please note. Later I upgraded to GTX
    460 SLI, and so on. Meanwhile, I started collecting Quadro cards
    and other gamer cards to run comparisons (I have more than 40
    GPUs now, ditto combinations of mbd/CPU). Today my gaming PC
    has two GTX 580 SLI.

    Thus, whatever GPU you obtain, bare in mind that you might observe
    a larger performance increase by pairing your purchase with a better
    CPU. It depends on the degree to which Autocad is sensitive to CPU
    performance (I don't know).

    If you'd like me to test anything specific for you, I'd be happy to
    help. I have a 3.4GHz 6000+ setup which atm has two GTX 460s
    fitted, but I can put on an 8000GT instead to get a baseline
    score, then I can fit other cards to compare.

    I have been Googling the possibility of running an Autocad benchmark
    for you. Have you seen this site?

    http://www.cadalyst.com/benchmark-test

    Please PM/email to discuss Cadalyst further if you wish.

    Ian.

    PS. To the other posters: replacing a gamer card with yet another
    gamer card when the OP is running a professional application may
    very well be completely the wrong thing to do in terms of the best
    buying decision. The OP is not playing a game. Best to find example
    performance data before making a recommendation where a pro
    app is concerned. I'm hunting atm...
  4. Just found these:

    http://www.tomshardware.com/reviews/best-workstation-graphics-card,3493-6.html
    http://www.tomshardware.co.uk/radeon-r9-280x-r9-270x-r7-260x,review-32796-15.html

    so it looks like Autocad can indeed run quite well on a decent gamer card, assuming
    the CPU isn't a bottleneck.

    dmaximob, is your budget high enough to get a used GTX 580? I've been obtaining a
    fair few of those recently for CUDA research, they're available for good prices these days,
    though they do need a decent PSU to run.

    Ian.

    PS. lowriderflow's suggestion of a GTX 460 is a good low-cost used option. Indeed, in
    the same price range these days on eBay, one can get GTX 560Ti cards. Don't bother
    with a standard 560 unless it has a high default clock - many 560s were actually slower
    than the later top-end 460s, but the 560Ti is a decent step up, especially those with
    base clocks of 900 or more.
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