All G-sync compatible monitors that I saw on Nvidia site have the same range for AMD FreeSync and Nvidia G-Sync. For instance: FreeSync range 40-120Hz and G-Sync range 40-120Hz.

But this Dell S2419HGF has FreeSync 40-120Hz but the Nvidia site says it's G-Sync range is 48-120Hz

So, is the G-Sync range is really smaller than FreeSync range on this monitor? Or is the Nvidia site wrong and G-Sync range should be 40-120Hz?

Thanks!