TDP doesn't equal maximum power consumption. I don't know where you get that idea, that is not the case.
The same misconceptions about TDP are repeated by the same couple people in every thread recently.
Of course, Intel's mobile chips have configurable TDP (cTDP), so the same SKU can be operating at different TDPs in different laptops. Doesn't that 47W Iris Pro also support 55W?
Maybe I stated that prematurely, but I do know the 4950hq is configurable with either 20 or 40 units depending on what the target TDP is. I also recall reading that it is configurable beyond 40 units as well (and that Apple was doing this) although I cannot locate it. It's been a while, I could have sworn reading about that on a Mac rumors website. Yet I could be wrong on that point. We'll see in 4 days.
Maybe I stated that prematurely, but I do know the 4950hq is configurable with either 20 or 40 units depending on what the target TDP is. I also recall reading that it is configurable beyond 40 units as well (and that Apple was doing this) although I cannot locate it. It's been a while, I could have sworn reading about that on a Mac rumors website. Yet I could be wrong on that point. We'll see in 4 days.
Iris Pro is apparently beating every AMD APU in terms of performance.
That is aside from the fact, again, that Bay Trail should give all low priced x86 devices reasons to worry. If the performance difference is minimal (as compared to say, an AMD mobile APU), that just means that manufactures will use Bay Trail for low end Windows devices.
Grid 2 tends to run better on AMD.
Comparing to the recently leaked stuff: Valleyview D was up to 12W, now its up to 10W TDP; Valleyview-M was 4-6.5W now its 4.5-7.5W, Valleyview-T (Bay Trail-T) was up to 3W and there are no new leaks about its TDP. Anything from 3-5W TDP is my guess.
So N2805 with its 2 cores running at 1.46 GHz will consume less than Z3770 with its 4 cores running at 2.4 GHz max? If that's true, then I guess heavy binning will have to be done which would drive the price up.Below 5W is safe I would say. N2805 2.5W SDP/4.5W TDP. Tablet models have a slightly less SDP. Around 4W TDP is my guess.
Intel lists the part’s SDP (scenario design power) at 2W, but leaked data suggests the TDP will be 7W when Turbo Boost (rumored to be 2.4GHz) kicks in.
I do think that at low levels of use bay trail will be significantly better than kabini/temash. 22nm vs 28 nm and the fact that kabini doesn't turbo or drops clocks at idle.
So N2805 with its 2 cores running at 1.46 GHz will consume less than Z3770 with its 4 cores running at 2.4 GHz max? If that's true, then I guess heavy binning will have to be done which would drive the price up.
Your first point is about process node (leakage, voltage levels) and clock/power gating. Intel surely excels at the first and is likely better at the second.
But your second point is nonsense, since AMD has been using P states for many years (homework: Which was the first AMD CPU using this tech?). Turbo is just a matter of time since Kabini's little brother Temash has it already.
Kabini and Temash idle at ridiculously low levels compared to notebook processors (though Haswell appears to be a little better) but compared to tablet processors they suck up power at idle.
Not true , Kabini has very low iddling power , actualy
this is up to the rest of the plateform to provide good
enough battery life.
0.77W W8 iddling power for the 1.5GHz 4C A4 5000 ,
a quad core at 1GHz would iddle at about 30% lower W ,
0.55W , a dual core would be at 0.4W.
http://www.extremetech.com/computin...-new-mobile-assault-lower-power-richland-apus
With no apps running while sitting idly on the home screen, the new Nexus was able to last for over 44 hours. During this time, wireless radios were deactivated and the screen was dimmed to its lowest setting and not allowed to timeout.
Kabini is very good compared to notebook cpus, even compared to Haswell but to compete with ARM in tablets a whole different level is needed.
Nexus 7 (2013) is getting 11-12 hours of battery life under productive usage. On a 15 watt battery that is approximately 1.4-1.25 watts per hour of productive use. Notebookcheck measured the nexus 7 getting 44 hours at idle.
I'm sorry but you lost me right about here. (mainly the units and context they're being used)
@rainy Yes, I realize that I just wanted to show that even Abwx's estimate of 0.4 watts for a temash 1 ghz dual core is exceedingly high for a tablet CPU.
No, temash and kabini run at their base clock (or they turbo) but I have never seen anything to suggest that they drop down to lower speeds when idle. Kabini and Temash idle at ridiculously low levels compared to notebook processors (though Haswell appears to be a little better) but compared to tablet processors they suck up power at idle.
Easy, 12 hours on a 15 watt battery is 15/12 = 1.25 watts per hour.