Maximum3D has posted a review of the Abit Siluro MX400 64MB video card, based on the GeForce2 MX400. The card was benchmarked against the standard MX, Kyro II, GeForce2 GTS, and the GeForce3, just to cover the entire market top to bottom. Heres a snippit:

    We tested the Abit Siluro MX400 with the NVIDIA 12.90 Detonator drivers, which lack the ability to change the clock speeds of the video card. Luckily, there are several 3rd party utilities available for free to overcome this obstacle. Abit includes one such program on the driver disc, although we prefer the GeForce Tweak Utility from Guru3D.