The video below provides a visual performance comparison of all three cards during the interactive rendering process. These tests are derived from the standard Octane Render benchmark and the results may surprise you.
With fewer CUDA cores, the GTX 780 easily beats the Tesla K20 but predictably falls short of the GTX Titan. As we pointed out in a recent article, performance isn't everything when choosing a GPU for rendering. If you haven't done so yet, take a look at the article mentioned above for more information on this topic.
Be sure to check back with us next month during Siggraph as we'll have some very exciting news and benchmarks to share with you on the GPU rendering front.
Are you looking for GPU based workstations to enhance your workflow? Please visit www.boxxtech.com or call 512-835-0400