Still the same frame shape though...bb shell is just in a different place relative to the bottom point of the frame...see the clearer picture on HongFu's site...
That looks like the BB30 version, so it's hard to tell whether the centre is any lower. The point though is that something which is better than a T4 as a frame with wheels in may not be better once you've added rider and handlebars 25mm further above the frame.
Dengfu say theirs has 60mm BB drop, which is a proper copy of the Cervelo. My screen ruler says the PX BB drop matches the BB shell ID, i.e. 35mm