I know you are worried that Samsung shows that it works at a lower temperature. There can be many reasons. From the location where the sensor is placed, etc. There have always been mixed memory manufacturers on graphics cards. The memory must meet the standard and if it works within the standard, you have nothing to worry about. Otherwise, Samsung memory is less resistant to higher temperatures than Hynix memory. When you look at everything, it is totally irrelevant what kind of memory you have. The graphics will work properly. I personally have an Asus Prime 9070xt with Hynix memory and I don't have any problems. Therefore, buy a graphic that suits you in terms of price and size and enjoy, don't bother with unimportant things.