I figured they are making improvement in HBM but wasn't expecting an massive improvement with power saving. That is great to know. I forgot that HBM is stacked

I figured they are making improvement in HBM but wasn't expecting an massive improvement with power saving. That is great to know. I forgot that HBM is stacked. I wonder if it a form factor issue? HBM is clearly "thick boy" than conventional DRAM. I imagine they need to make some room for the HBM modules including double-sided stick.