SSD Write Endurance 25nm Vs 34nm

[Christopher]

I believe that the X25-V benefits from a low average speed, good NAND, and good firmware. Some of the same things that are going to keep the X25-M G1 working for quite some time.

One possible issue with the 25nm NAND is the fact that Intel probably has a better binning method now, one which sees the better bins of MLC going to more uses than were previously required (the best MLC becomes HET-MLC for example). So less of the highest quality MLC makes it into the consumer drives which use 25nm Intel MLC NAND.

So with the 320 series, Intel was either wondering what to do with those lower grade bins (which were still good enough for SSD use) or was concerned about quality on a new process (more inconsistent NAND), so they added redundancy to the G3s.

But unquestionably, the 34nm Intel MLC is finer than the 25nm, much more so than the difference from 50nm to 34nm.