"This video compares the differences between "normal" widescreen and the new Widescreen Surround supported by the Matrox TripleHead2Go. The comparison is between 1680x1050 and 5040x1050. This is the video run used in benchmarking the NVIDIA GTX 295. It is the the "Frost" benchmark level from Hardware OC Bench. Unfortunately, it doesn't have sound.
You can see all the benchmark data at http://www.widescreengamingforum.com/wiki/index.php/WS_and_WTH_Benchmarking_%28Core_i7_920_and_GTX_295%29"