By AOMEI / Last Updated December 10, 2019

What are 3 types of backups?

Nowdays, there are 3 backup type, including Full Backup, Differential Backup, Incremental Backup. Full Backup is the most basic backup type, which will backup all the files & folders, partition, disks. However, it’s time-consuming and requires much backup space. So, new backup types are proposed, namely Differential Backup VS Incremental Backup

Differential backup: It refers to the backup of the changed or new-added data since the last full backup.

Incremental backup: Only back up the changed or newly added data since the last backup which may be a full backup or an incremental backup.

As you can see from above, the Incremental Backup and Differential Backup ONLY backup the changed or newly added data, but which one is better? How to choose backup type? Just be relax and continue to see below, this article will show you the answer.

Differences between Incremental Backup and Differential Backup with example

Below, I’ll show you the advantages and disadvantages of both new backup types in 3 different aspects, including backup speed, storage space required, restoration speed.

Backup speed: it displays how fast a backup is

In general, the incremental backup is faster than differential backup. Here is an example for you and it shows the principal of 2 new backup types.

"Supposing you create a daily incremental backup on Sunday with AOMEI Backupper. After you click Start Backup, it will create a full backup automatically, then create an incremental backup for the rest of schedule task. The Monday’s backup will contain the changed data since Sunday and the Tuesday’s backup will only keep the changes since Monday. However, Differential Backup will the backup the changes since Sunday forever."

In this example, you can see that the incremental schedule task will backup less data while the differential backup will backup more data. So, the incremental task will take less time.

Storage space required: It indicates how much space used to save image files

From above example, you can clearly see that differential task backup more data than incremental, so it requires more space to store its image files than incremental backup. And the longer the schedule backup last, the greater the difference in backup size.

Restoration speed: it shows how fast a recovery is

No matter what backup type you want to restore, you have to choose a full backup. So, if want to restore from differential backup, you need to add both the first full backup image file and the latest differential backup image file into the restoration list. And restoring from incremental backup requires not only the first full backup image file but also all the later incremental backup image files in the restoration list.

Therefore, using differential backup to restore your system is much faster, because incremental backup requires more operation steps. In additions, the incremental backup has a key disadvantage, if any of the backup in the schedule task is missing, the restore will fail.

All the above are based on the premise that we want to restore everything that we have backed up. If we only want to restore recent data, incremental backup is the best choice. There is a table which compares the three kinds of backups in general situation.


Full BackupDifferential BackupIncremental Backup
Backup SpeedSlowestModerateFastest
Storage SpaceMostModerateLeast
Restoration SpeedFastestModerateSlowest

Note: The backup speed and the storage space required may be different in a specific situation. For example, if the new-added or changed files contain more data than the original ones, incremental backup and differential backup are both slower than the first full backup.

Besides, after the first full backup, if there are only new files included in and are not any original file bearing data deletion, then, differential backup and incremental backup will cost same amount of time.

Create an incremental or differential backup with AOMEI Backupper

Generally speaking, the incremental backup and differential backup is better than full backup, but it still has some advantages and disadvantages. For which one should we choose, it depends on the situation and also personal preference. No matter which one you pick, AOMEI Backupper can play as a good assistant.

Now, keep reading below to learn the detailed steps.

1. Download AOMEI Backupper Professional, install and launch it.

2. Click File Backup under the Backup tab. To backup system, disk or partition, click the corresponding funtion in the following picture.

File Backup

3. Click Add File or Add Folder and select the files or folders you want to backup.

Add File or Folder

4. Click where the arrow points and select a backup device. You can backup to internal hard drive, external hard drive, USB drive, network drive, etc.

Add Destination Path

5. Click Schedule, select Incremental Backup or Differential Backup under the Advanced tab and hit OK to exit this window.

Incremental Backup or Differential Backup

Note:

  • If you want to backup at a regular basis, you can set daily backup, weekly backup, event-trigger backup, etc in the Schedule.

  • If you want to backup from or to USB drive, you can use “USB plug in” feature, which will backup data automatically when USB connected.

  • For every user who create a schedule backup, it’s necessary to delete backup files when backup disk full in Windows 7/8/10. Because the longer your schedule backup is, the less space your internal disk will have.

Step 6. Click Start Backup if there is no problem.

Wrapping things up

When it comes to incremental backup vs differential backup, here are 2 most important questions. The first question is what is the difference between them and the second one is which one is better. And you can find answer for both questions in the above content.

After that, you can create a differential backup or incremental backup with AOMEI Backuppper Professional. This software is easy-to-use and users can understand all the steps easily. And it offers you extra useful features, daily backup, USB plug in, backup scheme, etc.

The only limitation is that this version can only backup files, system, disk, partition on several computers. If you need to protect and recover unlimited PCs, you could consider using AOMEI Backupper Tech or TechPlus.