Is 4K@60Hz on u28d590d with rMBP 2014 with nVidia 750M possible?

[iMore Question]

4K@60Hz on u28d590d with rMBP 2014 with nVidia 750M

Hi there,

I've gone through dozens of websites/blogs/support and discussion forums and can't get a straight answer whether 4K@60Hz (HiDpi) on Samsung u28d590d with rMBP 2014 with nVidia 750M is possible.

Would you be able to verify?

Thanks in advance.

Ivan