captaincranky
Posts: 19,667 +8,801
These cards probably are the ones 'initially rejected during manufacturing', where some core cluster(s) may not have been working; hence, I am guessing here they are just trying to make some money out of these cards by disabling the damaged cluster(s) and selling them as 'GTX 460 SE'.
I agree with Archean. With TSMC 40-nm yields so low, it makes sense to maximize their existing inventory even if the chips aren't 100% up-to-spec for a particular SKU. The downside is the confusion it causes especially if retail cards aren't clearly labelled as such. I already discovered a long time ago that there was nothing "Special" in any card labelled "S.E.".
I think I recalled ATI having similar yield problems with 40nm processing. Wasn't that the reason that the 4770 was in such short supply for quite a while?