Re: Announcement: Bitmain launches AntMiner solution, 0.68 J/GH on chip
Yes, the newer unit has a much lower number of stales. But HW of these two version are same.
If you care about the stale number of the old version, please try to update the firmware.
Download: https://github.com/AntMiner/AntGen1/tree/master/firmware
After upgrading the firmware of my both AntMiners from the older version to Nov 29 version and running a 12 hours+ mining test on the new firmware, there is a significant amount of stales less:
