Some details about the 22 nm Silvermont architecture have been leaked from China and were picked up by German website Computerbase.de.
Silvermont's Valleyview processors will be available at the end of 2013 with up to four cores and clock speeds of 1.2 to 1.4 GHz clock speeds. The SoC will apparently include Gen 7 Ivy Bridge class graphics engines with four cores. The platform will support up to 8 GB DDR3L or LPDDR2 memory. The quad-core Valleyview processor will also introduce 1 MB shared L2 cache for each pair of cores.
As part of the upcoming Bay Trail platform, Valleyview supposedly be offered in two packaging types and is likely to be offered in variety of applications and not just tablets and smartphones. Intel could be following Nvidia's lead and use Valleyview to compete in all mobile applications as well as emerging automotive and industrial fields.
If Intel can take Valleyview's specs from a presentation to reality, it is clear that this is the Atom variant we have been waiting for since 2008, when Intel promised a capable SoC for the smartphone market.