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msi GTX 660 2gb OC vs sapphire radeon 7870 2gb TF OC

In comparison,,,
memory interface:::::::::: 192bits for nvidia & 256bits for radeon
memory clock speed:::::::::::6008 Mhz for nvidia & 4800Mhz for radeon.....

In which should I emphasize????

NEED A SOLUTION TO CHOICE for Architectural rendering with this software
http://lumion3d.com/
6 answers Last reply Best Answer
More about msi gtx 660 2gb sapphire radeon 7870 2gb
  1. You can not do direct comparison on spec between the two different architectures. Only way to compare is look at benchmarks in related applications.
    As an example the HD7870 has a slight win in gaming!
  2. Looks like that software favors CUDA, I say go for the Nvidia GTX 660.
  3. chemmajorp53 said:
    Looks like that software favors CUDA, I say go for the Nvidia GTX 660.

    thanks to all, but how can I calculate this ???
    there is nothing specified in the official website http://lumion3d.com/
  4. Best answer
    Based on this recommended GPU's http://lumion3d.com/wp-content/uploads/2011/07/lumionperformance2.png I would go with the GTX660! It is going to sit in between the 660ti and 650ti and better than HD7950 which is better than HD7870.
  5. rolli59 said:
    Based on this recommended GPU's http://lumion3d.com/wp-content/uploads/2011/07/lumionperformance2.png I would go with the GTX660! It is going to sit in between the 660ti and 650ti and better than HD7950 which is better than HD7870.


    Thanks, now can you Please provide the analysis of difference between 1GB & 2GB graphics cards???
    it isn't mean the 2gb will render 2xfaster???
    Please help I'm a beginner...
  6. No it does not mean that it means it can handle double the file size at a time to simplify it. Or handle double the amount of pixels/textures but you will have to task it with it.
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