The only difference that can be seen from the datasheet is the transfer rate. Since the X18 is the newer platform, it has a slightly better transfer rate ( 270MB/s vs 245 MB /s Max suistained xfr)
Here are all the new part numbers in tabular form with their short descriptions.
Old Part Number (X16 Platform) |
New Part Number (X18 Platform) |
Description | Difference |
ST10000NM001G | ST10000NM018G | 10TB SATA Standard | |
ST10000NM002G | ST10000NM013G | 10TB SAS Standard | |
ST10000NM003G | ST10000NM020G | 10TB SATA SED | |
ST10000NM004G | ST10000NM014G | 10TB SAS SED | |
ST10000NM010G | ST10000NM016G | 10TB SAS SED-FIPS | |