After installing TensorFlow and its dependencies on a g2.2xlarge EC2 instance I tried to run an MNIST example from the getting started page:
python tensorflow/m
Currently only GPUs with compute capability >= 3.5 are officially supported. However, GitHub user @infojunkie has offered a patch that makes it possible to use TensorFlow with a GPU with compute capability 3.0.
The official fix is in development. Meanwhile, check out the discussion on the GitHub issue for adding this support.