> Why not 128GB or push boundary for 256GB?

As I understand it, 64 GB modules are largest LPCAMM2 modules yet released with 96 GB being announced only a couple months ago. 128 GB might be possible on the Ultra 5 325 once either sufficiently large LPCAMM2 modules have been release or if the motherboard was redesigned to support dual LPCAMM2 modules, the Ultra X7 358H and Ultra X9 388H only support 96 GB. Support for 256 GB would likely require a desktop processor, or a redesign from Intel to support a quarter terabyte of memory on a mobile processor.

https://www.intel.com/content/www/us/en/products/sku/245720/...

https://www.intel.com/content/www/us/en/products/sku/245527/...

https://www.intel.com/content/www/us/en/products/sku/245526/...