How much bulk data can be entered at a time in asp.net mvc

Question

i am developing a multilevel marketing website where i need to have 8000 record entry in bulk i have two approach which i came to know while researching on this topic first is SulBulkCopy and second is TVP with Stored Procedure what will be better approach in both of these and one more thing these 8000 records keep on growing it can go to one lackhs as well and more than that even provide me solution i am using mvc by c# and my backend is sql server 2014