Advanced Micro Devices Inc (AMD)

[j3pflynn]

fyodor, you seem to have a point about the L2 cache. According to this pdf, http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23794.pdf
XP's L2 cache is 13.54mm^2 per 256K, which would give us 54.16mm^2 for 1024K. Since this is clearly far less than the @50%(@95mm^2) of the die image that Opteron's L2 cache takes up, one has to wonder. Could it be they're having enough trouble with cache defects that they had to add enough to be able to disable some and still have the 1Meg? 95mm^2 vs 54mm^2 is quite a disparity. Any thoughts?
Paul