Core 2 duo vs i series heat in Latitude

I want a 14" Latitude but my main concern is heat & fan noise.The core 2 (Pxxx ) are 25-28 watt,while the i series are 35 watt.
Does the 6400 (for example) run cooler than the 6410 with the new processors?
Does the i3 run cooler than the i5?
Not interested in Nvidia because of heat.
Not a gamer,just surfing,streaming video & movie playback.

 

The 35W of the i5 CPUs includes the Intel GPU in the same package so the overall nominal power difference between the i5 and P series is not much.

However, my overall impression on moving from and E6400+P8600 to an E6410+i5-540M is that the latter uses a little more power on idle. Full load temperature may be also a little more but is giving substantially more performance. Temperatures under moderate usage will be very similar.

John

 

Thanks for the info.
I found some good info in a thread comparing the E6410 to the Lenovo T410.
Guess I will jump in for a refurb E6410.

 

Doubt you will notice a scrap of difference in speed between the two for your use.
My M4400 has a P8600 and even at max load and with a lesser cooling system, doesn't get as hot as the normal idling temp of the i5-540m in my M4500, battery life isn't great either for the i5, although there are a couple of other considerations as far as battery life goes in a different notebook.
I like the P8600 a lot more than the i-heat, it's fast enough and hugely cooler

 

That seems logical to me.I am far from being an expert but a few years ago it seemed to me laptops were better built,cooler & quieter.I hate glossy wide screens,thin flexing screen lid's & noisy,constantly running fans.

I'm an old vart(sp) & don't want to waste $ on more processor than I need for basic needs but at the same time I'm looking for the study construction of my old Dell 6000.Not a gamer.

Seeing all the issues in the forums about problems with updating drivers,throttling,excessive heat etc. it seems like there has been little progress other than CPU benchmarks keep getting higher along with heat & noise.

 

the advantage of having a metal bottom cover is that it dissipates the heat much better than a plastic one, the problem is that it is and feels hotter.
the e6400 has a bottom cover and i think also the 6410.
but the e6400 has throttling issues.

 

From experience, I can state that the i5-520M doesn't produce a great deal of heat, even after sustained used and high processor loads. This was the standard processor before the i3 downgrade and simultaneous price hike.

The E6410 is better constructed than even the business quality laptops of yesteryear. You can play the game of "find the plastic" all day long and you'll come to the conclusion that this is as close to an all metal case laptop as technology will allow.

If you're worried about heat, battery life and reliability, stay with the standard Intel graphics, since the optional NVIDIA GPU is power hungry and mediocre in performance.

 

The downside of the metal base is more conduction of heat downwards if using the notebook in laptop mode.

I think the palmrest is plastic, but that is not part of the external casing.

John

 

i have the e6510 with a i5-540m

it gets warm sometimes, but never hot
i am very happy and impressed with the way
this machine stays cool

idle or under heavy load
all good