Quote - The only problem with using the GPU as it is also with Cycles for Blender (and they ARE FAST) is that your limited by the amount of ram on your GPU. 

That is true. Of course new cards will be coming out and it's likely that we will see GPUs with 8GB of RAM or more at affordable prices pretty soon.

In this regard I like how LuxRender is using the GPU: to accelerate the floating point calculations for raytraing.

This approach is not as aggressive as what SLG does but it doesn't run into GPU memory limitations, the RAM used is the one available on your motherboard. Over time it will be refined to make it more efficient and I believe that at that point we will have the best of both worlds.

Cheers.

Paolo

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