I bought this monitor because I already had an existing SyncMaster 191t and the Samsung Sales Support person told me this was the comparable unit. I was setting up a dual monitor situation in my office and wanted a monitor that closely matched my existing monitor as much as possible. While the size and shape lined up nicely, the coloring was off enough to be noticeable. The colors on the SyncMaster 191T were richer and more vibrant. While I played with the colors on the new SyncMaster B1940 I just could not get them to be the same. Both monitors are useable but there are times when I really do notice the difference. My advice is to buy two of the same monitors at the same time for a dual monitor set up to ensure minimal differences.