i have had SMR drives slow to about 2MB/s with sustained sequential writes. “noticeably bad” really undersells how terrible they are.
the 3.5" barracuda disks are SMR. the barracuda pro disks are all CMR. https://www.seagate.com/products/cmr-smr-list/
i have had SMR drives slow to about 2MB/s with sustained sequential writes. “noticeably bad” really undersells how terrible they are.