A lot of the speed is dependent on hardware and where you are saving, but in a recent test, I imaged 22 GB of data in about 40 minutes on a 5400 RPM drive on a Mac Mini saved back to a different partition on the same drive. On a MacBook Air with an SSD, I would expect the speeds to be twice as fast, if not more.
Note that the size imaged is not the size of the partition, but the actual amount of data used (since Winclone does not backup unused filesystem space).
I'm seeing a read write transfer speed of about 11 to 14 MBps. Max was at 20MBps. Seems very slow (USB 2.0 speeds) when comparing performance to something like CCC where I use eSATA cable to external HDD and I get 80 - 100+ MBps. Is there any way I can get anything close to that using WInClone 3.3?. Is this because of file level copying or is there an option to use block level?
*edit: I can see that the source HDD which contains the bootcamp partition is being unmounted just prior to the cloning. Thats good. I would assume that if it is unmounting the source drive then it must be using block level vs file level. I just can't figure out why I'm getting such low/slow transfer rate #s. THe bottleneck is not the external drive or the connection since I use the same HDD and connection to it for the faster 100+ MBps rate with CCC.
Here are more details on my setup and the performance I've been seeing for backing up and restoring.
I have two internal 500 GB Hitachi 2.5" 7200 RPM HDs in my mid 2009 17" MBP 2.93 Core 2 Duo.
The main drive in the MBP is a single partition with OS X. The 2nd internal drive is a single bootcamp partition and is dedicated to windows.
My target/backup drive is an external WD Caviar Black 2TB, with 1.80 TB out of those 2 TB remaining. The WD is plugged into a "toaster" that connects via eSATA cable to a Sonnet Pro Express Card/34.
The resulting winclone bootcamp image file is 101 GB. I began my bootcamp backup today at 11:08 am. It completed at 3:02 pm. Time it takes to back up the 500GB bootcamp partition is just a few minutes under 4 hrs.
I restored the bootcamp image file to a spare drive that I had. The spare drive was same make and model, Hitachi 500 GB 2.5" 7200 RPM. I began the bootcamp restore at 7:13 pm. The restore completed at 8:59 pm. Time it takes to restore the compressed bootcamp image file is about 1 hr 45 min.
When creating an image file of my Bootcamp drive using winclone I see 11 - 14 MBps (and sometimes up to 17 MBps) transfer rates.
In comparison, when creating an image file of my OS X drive using CCC I see 100+ MBps transfer rates.
The good news is that the winclone backup/restore works perfectly! Another bonus is that when making my backup via winclone, I can meanwhile be working in OS X the entire time. Winclone unmounts the bootcamp HD as it makes the backups, but allows me to do my work in OS X while winclone does it's thing.
Previously, I was using Paragon tools to backup and restore my bootcamp HD. And while Paragon was backing up my bootcamp drive I was completely unable to use my laptop during the entire process since it runs from a lilo or winP boot CD. So, winclone is a major advantage in that respect.
My only complaint is that winclone is slow, seeing that I got 11 - 17 MBps (max read/write speeds). But it works and it doesn't interfere as I continue to work in OS X while the bootcamp backup takes place.
Note: my OS X partition is on a separate physical drive than my bootcamp partition which gives this advantage of being able to work un-interrupted in OS X as the bootcamp backup runs in background. If your OSX partition and the bootcamp partition reside on the same physical HDD (or if you have an SSD) then you will have different performance experience than I.