Question about Ryzen 9 7900X - 702307

I'm interested in the AMD Ryzen 9 7900X and want it for my PC. In the specifications under memory, however, it says that the memory type must be LPDDR5X SDRAM. On all other websites, e.g. amd (i.e. the website of the processor itself: https://www.amd.com/de/products/processors/desktops/ryzen/7000-series/amd-ryzen-9-7900x.html under product under system memory type) Brack, etc. (except galaxus) it says that the memory type is DDR5. Is this an error by digitec and galaxus in the specifications? and is DDR5 memory compatible with LPDDR5X SDRAM? if not, what would be a comparable alternative (whether from amd or Intel)? I can also find memory of the type LPDDR5X-SDRAM on digitec with 1GB Ram at most. Do I have to buy them from elsewhere? I actually wanted to buy everything from digitec. I would appreciate a quick and helpful answer. Best regards