The SoC and the 5G are the main differences but the RAM is just 2Gb more. The CPU is not faster (just a little bit) but the GPU is much faster which is useful in 3 cases:
- real-time graphic intensive games¹
- video/photo editing with professional software that leverage the GPU
- AI application that can leverage the GPU
About RAM: I can understand that 2GB more is better but 4GB is quite enough, IMHO. The more powerful GPU is leading with fainthing battery drain problems. The 5G is better but with the 4G performances I can live all my life long (it has been said of 640kb of RAM).
I am just comparing the hardware
In fact, because the GPU overpowerful the X10III has a severe battery drain issue. Expecially because its display works at 120 fps while the X10II’s at 60 fps. I think than 30fps is quite enough for everybody and bringing down the fps would save a lot of energy.
NOTES
¹ why the hell using linux instead of Android to play? And why the hell playing with the smartphone, in first place?