Interesting...
I used Cathar's estimate, by which the fin pattern covers the die, then extends past it by 2mm. I then calculated the required diameter, based on the AMD spec die size for a Barton core.
As for the baseplate, the thermal simulation (i believe) used a 2mm bp (Right Bob?), so I may have justification to go to 1.5, if I can ever resolve my inlet problem...
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