FPGA resource issue of Cyclone 10 GX devices

Hello Guys,

We used 10CX220F780 before. Now one of our new application will switch to use 10CX105F780. Because both of them are package compatible, we only need to check some special logic physical constrains.

Our question is that their chipplanners show us same pages. However, 105 and 220 should have half difference at least. We checked that they have same x-coordinate and y-coordinate. So they have same counts of LAB resources, why?

Best Regard