AMD is preparing to drop the TDP on the Phenom II X4 945 from it rather high 125W to a moderate 95W.
While this is all well and good no one seems to know exactly how AMD will accomplish this feat. However observations of the B95 CPU show that it might be possible to run at 3GHz with the new TDP. The new CPUs should start sampling in Q3 along with production of the CPU. Channel availability could also happen in Q3.
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After having a llook at the future B95 CPU, we learned that this new Phenom II X4 B95 for business can make it at 95W at 3GHz clock, so we are probably talking about the same core. We suspect a new revision of the CPU and AMD will continue to make Deneb in 45nm process, but somehow it can drop the TDP, probably as it will use a more mature process.
The samples of the 95W Phenom II X4 945 are expected in Q3 while the production is scheduled for the same quarter. If all goes well, you will be able to buy it in the same quarter.