Start64!While ARM based system-on-a-chip (SoC) have recently been making waves in the datacenter space with product introductions from many vendors including Calxeda, HP, and Dell, all of the products released so far share one common limitation. Despite the significant improvement in energy efficiency and server density introduced with these various vendors’ products, the entire current crop of massively dense ARM-based datacenter servers is using 32-bit CPUs, with the associated memory limitations of the 32-bit address space.

Semiconductor provider Cavium, who already produces lines of SoC processors based on MIPS and ARM architectures available in multi-core packages from 2 to 48 cores, announced their Project Thunder where they look to utilize their extensive SoC and embedded device experience to deliver a 64-bit multi-core ARM SoC based on the ARMv8 64-but design.