http://en.wikipedia.org/wiki/Nvidia_NVENC
"The Tegra K1 platform includes support for H.265/HEVC video decode as well, but this isn’t accelerated fully in hardware, rather the decode is split across NVENC and CPU."
hmm...

另外K1的GPU用起来和桌面GPU比较像，开发起来舒服，但是可能会反映不出其他手机或平板上可能会出现的问题，既是好事也是坏事= =。