In part 6 of the Multi-GPU World Tour, the guys over at nV News take a look at some "uncommon" benchmarks. They put the test rigs through several games not commonly used for benchmarking purposes in an attempt to see how they stack up in a variety of real-world situations. The games they used are Morrowind, Brothers in Arms, Neverwinter Nights, Painkiller and Dungeon Siege 2.
When the benchmark concludes, the collected data is then processed and used to report minimum, maximum, and average frame rate. Other useful statistics can be provided such as the number, or percentage, of frames that fall within a given range of values, similar to the game F.E.A.R. With in-game benchmarking, the deviation from repeated benchmark runs is low and makes it an accurate measure of performance. Since many games do not feature an in-game benchmark, a second approach can be used."