Technical Report Number
In asynchronous systems, average function delays principally govern overall throughput. This paper compares the performance of six adder designs with respect to their average delays. Our results show that asynchronous addres (32 or 64-bits) with a hybrid structure (e.g., carry-select addres) run 20-40% faster than simple ripple-carry addres. Hybrid adders also outperform high-cost, strictly synchronous conditional-sum adders.
Franklin, Mark A. and Pan, Tienyo, "Performance Comparison of Asynchronous Adders" Report Number: WUCS-94-24 (1994). All Computer Science and Engineering Research.