The electromagnetic field radiated by Cu-graphene interconnects is predicted in the frequency domain using the equivalent single conductor formulation, and it is compared with the field radiated by a single-wall carbon nanotube (SWCNT) bundle interconnect having the same cross section. The effect of the frequency, of the configuration, of the graphene, and SWCNT mean free paths is investigated. The scope is to predict the risk of electromagnetic interference against nearby components and devices, and to define the most critical conditions.