Marvell has upped its game against Broadcom in the switch-chip market with the launch of its first 5-nanometer product along with new data processing units (DPUs). The company, which has just closed its $1.1bn acquisition of switch-chip player Innovium, claims its new units consume 50% less power than competitive products. The new product is the latest in the Prestera line, which will sit slightly below the switch-chips that Marvell is gaining from Innovium. The new Prestera DX 7321 Ethernet unit offers port speeds from 1Gbps to 400Gbps, with aggregated bandwidths up to 1.6Tbps, thanks to a technology called 56Gbps pulse-amplitude modulation (PAM4) serializer/deserializers (SerDes). The chips will target Broadcom’s Trident family of switches for carrier applications such as 5G fronthaul,…