The sram density is a pretty good equivalent. You can arguably do the average of sram and some logic. If you take the square root of that...you pretty much end

The sram density is a pretty good equivalent. You can arguably do the average of sram and some logic. If you take the square root of that...you pretty much end up with (modulo a linear scale) the existing nodes. That gets you size. You then need power and speed, which are a bit trickier to compare without a standard/reference device.