They are built on TSMC's 40 nanometer process and can work at up to 1.50GHz with power consumption ranging from 10 to 55 watts. While this may seem like no match for Intelís Nehalem processors which top out at around 3.3GHz (and burn up to 130 watts), Tilera's view is to increase performance by having many cores running at modest clock speeds rather than just driving up clock frequency.
The new Tile-GX series is based around a two-dimensional iMesh interconnect, which eliminates the need for an on-chip bus, and a Dynamic Distributed Cache system that allows each core's local cache to be shared coherently across the entire chip. According to the firm, this interconnect system is able to feed data into the chip's cores at very high rates of speed so performance can scale almost linearly with the number of cores.
Both Intel and AMD are also working on growing the number of cores on their processors and expanding the reach of their architectures, but Tilera claims to have a clear advantage in performance-per watt. Of course, they'll face an uphill battle competing with established players and the huge codebase behind their x86 architecture, but Tilera claims some top-tier system makers have already shown interest in their products and at least one is running their multi-core chips on test systems.