GT 630 kepler vs fermi (both DDR3) in dx9 games

Discussion in 'Videocards - NVIDIA GeForce Drivers Section' started by trocio2, Oct 22, 2014.

  1. trocio2

    trocio2 Guest

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    GT 630 1GB DDR3 GK208 Kep
    Which one is faster? I need this info. Thanks.
     
  2. HeavyHemi

    HeavyHemi Guest

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    Of course the Kepler versions are faster. Higher clock speeds and double the cuda core counts.
     
  3. xplodingboy07

    xplodingboy07 Guest

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    Well, Fermi and Kepler core counts aren't interchangeable, and the Fermi cards seem to ship with much faster DDR3 as well, so it could go either way.
     
  4. HeavyHemi

    HeavyHemi Guest

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    Are you claiming the Fermi cores are twice as fast at a lower clock speed? Be serious. The memory speed is nearly identical. It is the bus width for the lowest end version. So it is not even close use the resources available...
    http://en.wikipedia.org/wiki/GeForce_600_series
     

  5. xplodingboy07

    xplodingboy07 Guest

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    I'm not claiming that they are twice as fast, but per core the Fermi architecture is much faster. It also matters what OP is doing, some things are better with Kepler, some things, specifically some CUDA things are faster with Fermi. The memory bandwidth is twice as much on the Fermi card, and low end or not that makes a huge difference in games at that level of power.
     
  6. HeavyHemi

    HeavyHemi Guest

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    No, per core the Fermi is not much faster. The Fermi architecture used 'hot clocks' on the shader cores compared to the GPU core. The GPU's using the same bus width have the same memory throughput. It is not the memory speed but the bandwidth.The context here is DX9 games. Pay attention to the details you're not making sense.
     
  7. xplodingboy07

    xplodingboy07 Guest

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    I don't want to get into a pissing contest here since I having posted much here, but don't try to school me on details when you are clearly the one neglecting them.

    I know how the shader clocks work, and per core Fermi is faster. It just is. I'm not saying that it's a better architecture, just that on a 1:1 scale a Fermi core would come out ahead. If you refer to my post again you will see that I mentioned the memory bandwidth, I didn't talk about just the bus or the clocks, it's an overall thing. The Fermi 630 has higher bandwidth, and that makes a big difference in games.
     
  8. HeavyHemi

    HeavyHemi Guest

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    28.5 to 28.8. GB/sec. That some difference there. Details....details.
    This isn't a 'pissing match'. This is providing accurate information to a query.
    The Kepler version is superior by any metric that counts. I even provided you a link proving this.
     
  9. xplodingboy07

    xplodingboy07 Guest

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    I am still not allow to post a link, but the bandwidth numbers are not what you posted according to the nvidia specifications. Well, looks like I can edit one in.

    http://www.geforce.com/hardware/desktop-gpus/geforce-gt-630/specifications

    The Fermi card has twice the bandwidth of the Kepler. It's likely the better gaming card on that alone.
     
  10. HeavyHemi

    HeavyHemi Guest

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    You're not aware there is more than one model with DDR 3. There are Fermi and Kepler models having either 64 bit or 128 bit memory bus width. The memory throughput is essentially identical with the same bus width. The problem here really, is that Nvidia has made a confusing mess as you'd have to know the specific details of the GPU you were purchasing as the nomenclature is the same. For example the EVGA 630 http://www.evga.com/Products/Product.aspx?pn=01G-P3-2631-KR Then here is an MSI version which appears to be Kepler based on the clocks...http://us.msi.com/product/vga/N6301GD3LP.html#hero-specification
     
    Last edited: Oct 22, 2014

  11. trocio2

    trocio2 Guest

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    http://www.geforce.com/hardware/desktop-gpus/geforce-gt-630/specifications

    I can get (soon) the GT 630 with 25GB/s bandwidth (fermi) or something like this with half the bandwidth and newer gpu core:

    http://www.asus.com/Graphics_Cards/GT630SL1GD3L/

    Both are DDR3 but dx9 performance is very important to me (it's not difficult to find dx11 benchmarks). I'm coming from a HD 4670 (which was a great low end gpu 5 years ago) and I need something (nvidia) that it's not weaker than my radeon. My options are very limited. Thank you, guys.

    @HeavyHemi I think that MSI is fermi because kepler ones use a 64 bit memory interface and have 9xx mhz gpu clocks. The power draw for GT 630 kepler is only 25w...
     
    Last edited: Oct 22, 2014

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