some Taobao merchants sells Nvidia p106 at ~400 RMB/pcs, and claim it can be cracked to enable DirectX (for games) with unsigned driver (needs bcdedit command & disable secure boot). (claimed) perf is nearly the same as 1060 6GB.
and on some bbs, people say "why not buy used 574(=RX570 4GB) at similar price? that could use official upgradeable drivers and dont have to switch on game start blahblah. only consider to buy at < 300 RMB or even 200 RMB."