About the NVIDIA K1 in the Nexus 9

First of all, I'm assuming that the rumor about the Nexus 9 (Volantis) made by HTC is true.

Now, considering that the post from Android Police states that the tablet would have a NVIDIA K1 processor, my question is: ¿How well could this chip fare against the competition?

I ask this because I'm ignorant (and I'm willing to openly admit it) about processors but I can remember how bad the NVIDIA Tegra 3 chip on the Nexus 7 2012 was and how a lot of people made their complaints heard about relatively poor performance and quick aging among other reasons/issues.

¿Have those critics been issued by NVIDIA? ¿Can this chip truly be a beast? ¿Would it suffer the same issues the Tegra 3 had?

Thanks in advance!