That would be the DC2+ chips and as far as I know the HC3800 is based on DC2 (although there has been some speculation on the HC3800 actually being DC2+). Yes it is less of a variance than the older 720p implementations but the difference is there just the same from what I have seen and DC3 is over-all superior, slightly, but superior
You have to have a very critical eye to notice these variables and the vast majority of un-trained eyes would see very little difference, if any. I see the subtle differences and know that I would appreciate the HC4000 over the HC3800 even though it is more of a lateral move versus a serious upgrade.
Maybe they can do an HC4400 with DC4
, Oh and a mechanical Iris like the HC3000/3100