❯ Dataflow chipmaker Efficient Computer raises a $97 million Series B at a $650 million valuation

Second round this yearAccording to Reuters reporter Stephen Nellis, chip startup Efficient Computer raised a $97 million Series B at a $650 million valuation. The company closed a $60 million Series A just in January, led by Triatomic Capital with participation from Union Square Ventures, Toyota Ventures and RTX Ventures.

Data flows to the computeFounded in 2022 by computer architecture researchers from Carnegie Mellon University, Efficient Computer builds processors based on a spatial dataflow architecture. A conventional CPU fetches data, computes and writes it back one instruction at a time, spending much of its power moving data around; a dataflow design lays compute units out in a grid and lets data flow through the right units as it arrives. Its first chip, Electron E1, is programmable in C, and the company says it is 10 to 100 times more energy-efficient than commercial ultra-low-power CPUs on typical embedded tasks.

AI heads to the edgeDrones, sensors, wearables and industrial equipment all want to run AI locally, but their batteries and cooling can’t support power-hungry chips. That makes efficient processors a key component as AI spreads to devices, and explains why defense and automotive investors appear on its cap table. The hard part for any new architecture is the software ecosystem: whether developers will rewrite code for it matters more than chip specs.

▪ SIGNALThe AI chip battle isn’t only in data centers; on devices where one battery must last for years, compute per watt is the real barrier.