It's hard to tell because DRAM vendors talk about things like "1x nm" or "1a nm" but it sounds like they are still above 10 nm which is fairly far behind logic

It's hard to tell because DRAM vendors talk about things like "1x nm" or "1a nm" but it sounds like they are still above 10 nm which is fairly far behind logic processes. DRAM typically sells for much cheaper than logic so they may not be able to invest as much as TSMC.