I guess it must be Tbird's that overclock better with a blue core. Because from what I understood, either Tbird's or Duron's overclock better have better overclocking with the blue core. Also I forgot to check what week my Duron was, but I am hoping that its somewhere in the 30's this way I can hit at least 950-1Ghz. But I am not worrying much about the Duron as I only got it because I didn't have enough money at the time to buy a 1Ghz, but now that I ordered my 1Ghz and it should be here either by the end of the week or the begging of next, I will naturally be using that instead of the Duron. So most likely I will be selling my Duron soon.