Note: They are not using the built in benchmark and had this to say about the difference in performance:
http://www.pcgameshardware.de/Tom-C...55716/Specials/Benchmark-Test-Review-1222520/
It is not a worst-case benchmark, but our scene is much more challenging than the integrated benchmark - if you want to use it to assess the performance of your system, please note that performance in the game is much lower.
http://www.pcgameshardware.de/Tom-C...55716/Specials/Benchmark-Test-Review-1222520/