The guys over at T-Break compare the performance of the nForce 4 SLI and the newer nForce 4 SLI X16 chipsets to see if there's any difference. We initially started out by conducting tests at only 0X and 4X AA however looking at the benchmarks in the previous pages, we really didnt see any difference at all. We contacted nVidia about this and they suggested doing tests using 8X and 16X AA and thus we went back and benched all four games using that setting as well. Besides Quake4, we really do not see the X16 posting higher results in anything else. In fact, Serious Sam 2 and Call of Duty 2 consistently showed the older nForce4 SLI performaing better in most of the benchmarks. If you're contemplating an upgrade, you're probably not gonna want to spend an extra $100 for the SLI X16 chipset, according to the article.
