Just got word from AC @ Nvmax.com that he's posted their GeForce FX preview and he claims that they have exclusive benchmarks between TI4600 and the FX.

So far you have attained that had Nvidia revamped the Ti 4600 using the .13 micron process and faster memory then we would probably have a direct competitor for the ATI R300. The ATI R300 has a 256Mb memory bus but uses the .15 micron process. This is Nvidia and as its fan base know; when Nvidia has a competing product - they crush it.

NVmax FX preview