Viper Lair posted a review on the MSI P6N SLI Platinum Motherboard

From a performance, stability and overclocking stand point, some of it depends on the BIOS you use. At time of writing, the latest 1.22 BIOS is still beta, but if you want the most from the board, this is the BIOS revision to use if you are overclocking. Standard performance with the original BIOS is quite good, especially in the memory department. CPU performance does fall slightly behind the likes of the 975x chipset in synthetic tests, but most multimedia applications don't suffer noticeably as a consequence. Gaming performance is excellent.

MSI P6N SLI Platinum Motherboard Review