FAT:2GB、FAT32:4GB、NTFS:256TB、exFAT: 16EB；
2. The maximum format capacity of the file system is different:
FAT:2GB, FAT32:2TB (limited to 32GB for single NT kernel system), NTFS: 2TB-256TB (influenced by MBR, GPT partition format can be larger), exFAT:64ZB (theoretical value, currently supported to128 Pb);
3. The size of the cluster is different (according to the capacity of the disk, flash card and hard disk of the storage device, the size of the cluster can be different to make the most effective use of the storage space);
Maximum cluster: FAT:32KB, FAT: 32: 64kB, NTFS:64KB, EXFAT: 32768kB;
4. The supported operating systems are the same;
Fat: after dos, Windows 95 and LINUXFAT32: win 95 OSR2；; Ntfs: after windows 2000; Exfat: After Windows Ce6, Vista SP 1 and Windows 7.
Extended data:
1. When deleting a file and writing new data, FAT does not organize the file into complete fragments before writing. After long-term use, the file data will gradually become scattered and the reading and writing speed will slow down. Hard disk defragmentation is a solution, but it must be done frequently to keep the efficiency of FAT file system.
2. When a file is deleted and new data is written, FAT will not organize the file into complete fragments before writing. After long-term use, the file data will gradually become scattered and the reading and writing speed will slow down. Hard disk defragmentation is a solution, but it must be done frequently to keep the efficiency of FAT file system.
3. The shortcomings of 3.ntfs are mainly manifested in the slow reading speed of U disk after frequent use of formatting initialization;
4.exFAT is a file system designed by Microsoft for flash memory devices (USB flash drives, memory cards), and its compatibility is very good. It is suggested that mobile devices such as USB flash drive should be preferred.