Is there a way to install Ubuntu x64?

As the title mentioned. I could only find x32 bit Ubuntu in the embedded software centre.

From the reply of this post
https://devtalk.nvidia.com/default/topic/917982/jetson-tx1/64-bit-userspace-tx1/

It seems that the 64bit ubuntu will be provided this spring. Is there an exact date?

Next release of Jetpack should have it.

https://devtalk.nvidia.com/default/topic/917982/jetson-tx1/64-bit-userspace-tx1/