New here but none-the-less been doing some research on Yonah and quite interested in it.
I think the preview shows me what I expected, a mobile processor that is competitive against desktop processors, whilst being viable for use in low profile, light weight laptops.
The problem that I see here, is that everyone expects to use it as a desktop processor, which it is not. They want it to perform like an Athlon X2 even though that is not it's competitor. It's competitor is the Turion X2, which won't make it out untill after Yonah is released.
What I suspect will hapen because it will come out before the Turion, it will already have a hold on the market, and therefore it will be difficult for the Turion X2 to prove itself. I'm not saying Turion will be better or not, only time will tell, I'm just saying that because of AMD's inability to match Intel in its launch, it could suffer in market share (plus Intel is a much bigger company and has the Centrino platform).
The 65nm vs 90nm thing is a null point IMO, M2 isn't coming out for a while, and by that time, Intel would be close to its next generation architecture. Keeping it in the mobile market, if the 90nm Turion X2s come out in March, it would'nt make sense, a couple of months later, to change to 65nm.
What I'm trying to get at, is that by the time AMD's Turion X2 65nm CPUs come out in volume, Intel would be either very close to, or at the stage whereby the can roll out their Merom CPUs which are reportedly going to consume a lot less power. So, the power consumption benefits that AMD gains from moving to the 65nm process are nullified by Intels Merom CPU. So, for the mobile market, Intel will have the more tempting proposition of low power consumption plus performance adequate for business work.
64bit? I don't see it being a huge deal for consumers at this stage untill Vista is well and truly established. I wouldn't buy a Turion just because its 64bit ready. Most Turions don't come with powerful enough graphics to run Vista anyway (in NZ anyway), apart from Acer Ferrari. Vista will come out in 32bit form anyway.
Battery life? Well I'm getting 4+ hours out of my laptop with just general surfing, wireless on full power. The key to this is to set the power scheme as 'Max Battery.' Intel Speedstep keeps the processor at 366Mhz as much as possible, going up to 797Mhz then onto 1.73Ghz if needed.
The problem I have with the preview power consumption figures is that the Motherboard probably doesn't support Speedstep. The reason why I supspect this is because of the similar load/idle figures.
Now for the overclocker wanting to put it onto the desktop; you won't need to put masses of money into water cooling the CPU because quite simply it doesn't produce the heat that an Athlon X2 or P4 does. At stock, it appears to be competitive with the 3800+ X2, so overclocked who knows? If the reviewer used 667Mhz DDR2 Ram it would've been more competitive I guess too.
Please don't flame me, I hope I have some valid points