2.07 GHz floating-point unit with resonant-clock precharge logic

This paper presents an 8-cycle 64 FO4 single-precision fused-multiply-add floating-point unit (FPU) chip with fine-grain resonant clocking and dynamic-evaluation static-latch logic to achieve dynamic-logic levels performance with significant power reduction. Fabricated in a 90nm low-power RVT technology, the resonant FPU achieves clock speeds up to 2.07GHz. At its resonant frequency of 1.81GHz, it dissipates 334mW, yielding 31.5% lower power and 32% more GFLOPS/W over a conventionally-clocked version of the same FPU implemented on the same die.