The Jetson TK1 GPU
The GPGPU capability is probably greatest competitive advantage for the TK1 SOC. Nvidia claim Tegra TK1 reaches 326 GFLOPS of performance, compared to estimated 200 GFLOPS for the competing SnapDragon 805.
NVidia have a strong ecosystem and experience in the GPGPU space. The same Kepler architecture used in the K1 is used to power many of the worlds fastest super computers. NVidia the competition with superior drivers refined over years for Desktop and Super Computer use. Notable capabilities include OpenGL ES 3.0, CUDA 6, OpenCL 1.2, and OpenGL 4.4, and a bevy of other GPGPU tools
Imagination Technologies made compromises to their support of FP32 and FP64 in their latest GPU. So whereas they claim the same GFLOP potential as the TK1 Kepler GPU, the
Frames Per Seconds (FPS) Comparisons
According to my testing, graphics performance on the Jeston TK1 is about on par with Intel HD 4600 graphics, but with superior OpenGL and GPGPU capabilities. Power draw for graphic-intensive tasks has been surprisingly low. It appears that typical graphical applications probably default to lower-power FP16 operations. GPGPU tasks, by comparison, do increase power draw significantly.
More details soon.