c2d over core duo- any more heat? and worth how much more?

Two identical notebooks, same RAM, both XP, integrated graphics both. Not doing video editing, no gaming, not a whole lot of multitasking.

Worth $75 more to get the Core 2 Duo version over the Core Duo at the same speed?

I understand from reading here it's a matter of newer architecture and future proofing- but will CD be any cooler than C2D? Better battery life or the same?

Tell me this: bigger jump from Pentium M 1.73 to Core Duo 1.66, or from Core Duo 1.66 to Core 2 Duo 1.66.

 

Its bigger from M to Core Duo i would think.

 

At the same processor speed, the primary difference in C2D vs CD becomes the 64 bit ability of the C2D. It would be just that bit more future proof... And it indeed is a bigger jump from the Pentium M to the CD, than from CD to C2D. Also, if either is cooler, I'd say it's the C2D. It's implementation of speedstep is a bit better than the core duo.

 

Battery life should be the same.

I'd go for the Core 2 Duo in this day and age - it's newer and more efficient. I doubt the heat difference between it and the Core Duo will be significant. The Core 2 Duo does run a little warmer. Which notebook are you looking at?

 

in practical term, I doubt anyone would notice the difference, be it battery life or heat/fan noise or speed.

So it is 75 dollars for 64 bits or 75 dollars for something else like RAM which have more immediate benefit.

If you intend to use it for say 5+ years, there may be a point for 64 bits. Otherwise, just get something more useful with the 75 bucks(even a dinner with family or friends, if not for other accessories).

You can also wait another 3 months and we are going to see price parity.

 

"The Core 2 Duo is more 20% more efficient while producing less heat output over the Core Duos and the Pentium D", recalling from an advertisment.

I'd go for the C2D because
-I like the latest stuff to be in my machine
-It has 64bit (future proof)
-In my opinion it is better price/performance ratio.

 

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Wow, that statement makes it sound like there is a bigger jump from the CD to C2D than there is from PM to CD; putting the last two in the same boat vs the C2D (both being 20%).

I'll have to think about it. As far as future proofing, I've yet to have a notebook even last two years, so my priority is heat. Can't stand a hot palmrest.

These are TP's I'm looking at.

 

It's a t-60.

Why would the core 2 duo actually run warmer? Is it that the core 2 duo actually uses two processors, and cd only simulates it, or is that even right?

 

Core Duo/Core 2 Duo is 1 processor, 2 processing CPU cores. Core 2 Quad is ( if im not wrong) 2 processors with 2 processing CPU in each) melded into 1.