Jetson Tegra K1 double precision performance

What is Tegra K1 performance for double precision operations ? I found some informations here:
http://www.pcper.com/reviews/Mobile/NVIDIA-Tegra-K1-Kepler-meets-ARM-Project-Denver-Surfaces/GPGPU-and-Chimera-2-Image-Pr

If this is true, so (if understand correctly ?) maximum performance on Jetson is 326 GLOPS * 1/24 = 13.
Please let me know if this is correct.

That sounds correct to me since the GK208 produces 1/24th of ~700 GFLOPS at 902 MHz.

The GK208 has 2 SMX’s and the K1 has 1 SMX. The GK208 and K1 support different compute capability levels (sm_35 vs. sm_32) but seem somewhat comparable since the GT630 DDR3 has approximately the same device bandwidth as the TK1.