It seems,
5700 come swith Micron D9WCW MT61K256M32JE-14:A they are specified to run at 1750 MHz (14 Gbps GDDR6 effective).
5700xt comes with Samsung K4Z80325BC-HC14 : they are specified to run at 1750 MHz (14 Gbps GDDR6 effective) too.
waiting for results with optimised kernels...
Thanks for that info, interesting.
they probably did it on purpose to keep miners at bay until gamers buy them

)
Going on that logic then they will change that everytime they release a new gpu hehe, dont think that is the case but who really knows.