Since there is NO XMP there is no point in buying 3200Mhz ram. Only the JEDEC  2666 or 2933 profile will be used and it depends on the CPU. 2666 for Core I3 I5 and 2933 max for I7 I9. If the JEDEC  profile is slower it may only run at 2133 or 2400.
Hi I have a question about upgrading my RAM from 8gb 2666mhz to 8gb 2x = 16gb 3200mhz. The supported RAM is only 2666mhz but I'm planning to buy 3200mhz.. do you think guys 3200mhz RAM will work without any problem? My current Dell specs. i5 10500 1 tera HDD GTX1650 OC 8gb RAM ddr4 2666mhz  260watts PSU 
Dell Opt 3080 RAM upgrade from 2666mhz to 3200mhz