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On May 10th , Intel officially launched the last Centrino update: Santa Rosa. Notebooks built around it will get 800MHz FSB, up from the previous 667MHz. There are also a couple of improvements like the introduccion of SpeedStep technology for its FSB and Turbo Memory (designed for use with Windows Vista's ReadyBoost, ReadyDrive and SuperFetch).
AMD has been working on a serious competitor to Intel's mobile platform and they may have it ready around the middle of 2008. By that time, they will probably have to face Montevina, which means performance will surely not be their best bet, especially considering that Griffin will be based on the current generation 65nm K8. Instead, AMD is hoping on getting a power efficient platform: Puma. Their goal is to extend battery life beyond 5 hours. To achieve that, several techniques will come into play:
- Each CPU core gets an independent voltage plane: it can work at a different frequency and/or voltage.
- Mobile optimized memory controller: it also operates at a separate voltage than the rest of the CPU.
- Power optimized HyperTransport 3: either the inbound or the outbound link can be scaled down or turned off.
- PowerXPress: if you have an external graphics solution (other than the one integrated on the RS780), it will be disabled while on battery power.
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