These are the monitors with a 10 bit panel (not 8 bit + FRC) =
U3223QE
U2723QE
U3818DW
UP3218K
UP3017Q
UP2718Q
UP3216Q
UP2715K
U3014

Prices change quickly so check our sales site. You should direct the video card GPU question to the Desktop Video board.

Thanks for your reply!

Please, could you say, where this information (true 10 bit or  8bit + 2 bit FRC) can be obtained (for feature use)?

I've read the specification here , but I found only "1.07 Billion colors" words. I know, that it means 10 bit color, but how to check whether FRC method is used? How to distinguish true 10 bit monitors from 8bit + 2 bit FRC monitors (using Dell specification)?

That data is not posted on our external sites. You have to search reviewer sites who state it, such as TFTCentral or pcmonitors.info.

Hi! What about now? 

These are the monitors with a 10 bit panel (not 8 bit + FRC) =

U3223QE
U2723QE
U3818DW
UP3218K
UP3017Q
UP2718Q
UP3216Q
UP2715K
U3014

The U2713H is not on my updated list above. You can see here that the U2713H uses 8 bits + FRC.

I am from India and I can see 2 variants of the UP2718Q:

Dell UltraSharp 27 4K Monitor: U2718Q

and

Dell UltraSharp 27 4K HDR Monitor: UP2718Q

Are they both True 10 bit and not 8bit + FRC?

Thanks in advance.

Nope.
UP2718Q = 10 bits
U2718Q = 8 bits + FRC