So I got the PC9600's... But I am a bit dumbfounded by the speed at 333MHz (1:1) compared to the full 600MHz (5:9):


333MHz 5-5-5-18




600MHz 5-5-5-18





By upping the frequencies to FSB 353 and RAM 617 (4:7) and increasing the VRAM to 1.85V (got a BSOD on 1.80) I did get an increase.
But the question remains: How can a 333MHz clock get such a high bandwidth?