If you are interested, I am selling my Waterforce because I am switching to full modular water cooling.
It has Samsung memory and core clocks up to 2130MHz depending on the game.

Which graphics card? Gigabyte Aorus GeForce RTX 2080 Ti Xtreme Waterforce - 11 GB
if so, for what price? how long did you use it and was it overclocked?

Mine has Samsung installed and can be overclocked incredibly well (+1100)