[nbingham]

I was specifically talking about dual rail domino QDI. When you compare the typical dual rail domino QDI adder found in Andrew Lines thesis against a typical clocked carry lookahead adder like Kogge & Stone, it is worse by factors of between 2 and 3 in energy, area, and throughput.

Bundled data is a simple control with data clocked from that control. Its very much keeping arithmetic away from the QDI circuitry.

Though to be fair, I haven't seen a good examination of how pass transistor logic might affect QDI arithmetic circuitry, so maybe there is hope.