Power consumption on various Core 2 Duo chips?

Hello,

I was looking at the C2D T5270 that is coming on my new Vostro 1400, and comparing it to the other options (T7250 and T7700).

What caught my eye was the fact that all of these chips, from mine at a pedestrian 1.4GHz. to the T7700 at 2.4 GHz. had a TDP of 35 watts (which looks like the maximum amount of heat the cooling system needs to handle).

I would expect the T7700 to use more power AND generate more heat than the T5270, but they both show a maximum needed cooling capability of 35 watts. However, I realize this is a 'theoretical' spec.

Can anyone clarify the power consumption of these chips? Just a little confused on how the power consumption and heat generated will vary.

Thanks!

 

All the Core 2 Duos are capable of throttling, so even the highest end processor can be reduce power consumption by halving its clock speed.

 

But overall, do the faster chips eat more power at idle? Is there a battery life and heat advantage with slower chips in the same series?

 

At idle, the power consumption should be about the same.

 

I am confused about your objective, why is at idle so important? Does not seem like where you should be concerned I mean if you are not going to be doing anything with it (idle) you can shut it down and save the most charge. If you really need to save battery and want low temps you should look at LV and ULV CPU's as the power differences in the same series will be minimal. If a faster CPU gets a job done faster then any additional power and heat (within same series) cost is likely to be balanced by less time under load. Standard Mobile CPU's are already optimized for lower power and heat while delivering virtually full performance.

 

nothing to worry about, even T7800 works fine in 1400, let alone T7700...