There is also a GPU simulator available, see [url]http://gpgpu-sim.org/[/url].
Or you can try your code on a real Tesla K20: [url]Page Not Found | NVIDIA.
The GTX Titan may also be a good starting point for developing high-performance code on Kepler:
[url]The GeForce GTX Titan - The Ultimate CUDA Development GPU - Announcements - NVIDIA Developer Forums
Don’t forget the ~$80 GK208! It’s also a great starting point for researchers since it gives you most of GK110’s features.
800 GFLOPS is pretty good. 10 GFLOPS / 1 USD.