Comment by fulafel
8 hours ago
Lower density chips are cheaper, because they can be made in previous generation fabs churning out previous generation wafers with previous generation equipment. So there isn't a choice between making a high or low density wafer from the same fab line.
Are there any older generation fabs making DDR5-6400 like the article discusses? As far as I know those ones were mostly upgraded to newer processes and the long lifecycle fabs have targeted slower speeds.
Is there all that much using larger node sizes for new RAM?
Or is it just binning by defects, the lower sized parts are just the full size but with defects disabling large chunks of the silicon as I would expect?