Leaked Intel documents have revealed details of the company's next-generation Atom platform. Codenamed Bay Trail, various versions of the platform are slated to replace the Cedar Trail platform for desktops and netbooks, the Queensbay platform for embedded devices, and the Oak Trail platform for tablets when they launch at the end of 2013.
According to the leaked documents, the heart of the platform is the Valleyview system-on-a-chip (SoC), a 22nm part that brings greatly increased performance and features on both the CPU and GPU sides of the fence. Valleyview will be available in four flavors: D- and M-series chips for desktops and netbooks, I-series chips for embedded and industrial devices, and T-series chips for tablets. We'll break down all of the improvements to make them easier to digest.
The CPU: Silvermont brings big changes
The CPU side of Valleyview is codenamed Silvermont, and it represents the most substantial change to the Atom architecture since it was introduced in 2008. Silvermont brings out-of-order execution to Atom, which allows the CPU to process different instructions as soon as resources to execute them are available. The present Atom uses in-order execution, which executes instructions in the order in which they are received, leaving CPU resources potentially unused during a given CPU clock cycle.
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