Intel has marked the Atom's first anniversary with the launch of two new parts, the Z550 and Z515.
The Z515 runs at up to 1.2GHz and supports Burst Performance Technology, which allows it to adjust the frequency automatically depending on performance demands. It supports US15W and UL11L chipsets and it will primarily be used in MIDs.
The Z550 runs at 2.0GHz, but still stays withing the 3W power envelope. Both chips have a 2.4W TDP, they idle at 0.22W, have 512KB of L2 cache and run on a 533MHz FSB.