Eweek points out that AMD's new x86-based Opteron series of chips. formerly code-named Kyoto, are highly dense and energy-efficient processors built to shut Intel's low-power Atom chips out of the market.
Feldman, general manager of AMD's Server Business Unit, said that the market is important because it 's fueled by the rise of cloud computing and the growing demand for greater energy efficiency in the data centre.
More often, servers are being asked to run massive numbers of small, highly parallel workloads, rather than large applications that require huge amounts of computing power, Feldman said.
Feldman showed off HP's Project Moonshot motherboard armed with Opteron-X chips. But the area is highly competitive.
Intel last year rolled out its Centerton Atom SoCs, the first aimed specifically at microservers, and later this year will release its next-generation Avoton chips.
ARM partners such as Calxeda and Marvell Technologies are already selling 32-bit ARM-based chips for server deployments.
AMD is promising not just Opteron-X chips, but starting next year will make ARM-based microserver SoCs on ARM's upcoming 64-bit ARMv8 designs.
Feldman said that AMD had relaxed its religious commitment to x86 and is expecting to be a "premiere vendor" of ARM-based server chips.