If I am not wrong, only the last one is correct: 1333 at 266FSB. The only other possibility that makes sense is 1300, possible by 13x100, but this never has been produced.
To sum up at 266FSB you can find:
9 x 133.3 = 1200
10 x 133.3 = 1333
10.5 x 133.3 = 1400
This is the higher AMD goes with Thunderbird core.
Hope this helps.
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