Why is there any allocated memory difference between 6.2 2 versions with 6.2.5?

[slyexe]

You're usable graphics memory has changed since trying each version. Something was using the integrated gpu's memory when you ran the newer version of hashcat.

See:
6.2.2 -> * Device #1: Intel(R) HD Graphics 4400, 1565/1629 MB (407 MB allocatable), 12MCU
6.2.5 -> * Device #1: Intel(R) HD Graphics 4400, 768/1629 MB (203 MB allocatable), 12MCU


So whatever is happening on the otherside I cannot relate to but without having enough GPU memory typical task such as benchmarks or mask attacks won't work.