Is the T61 really cool and quiet?

the coming 45nm mobile CPU will have a thermal design power less than 30W with higher frequency while T7800-7900 over 40W,therefore i would rather to wait a bit to upgrade to 45nm CPU (with same socket P)due to superior thermal design and better computing power.

 

Hmm I find it hard to believe that a t7300 WOULDN'T run a bit hotter then a T5470.

 

compare the thermal designs between these two from the internal structure photos you could easily realize which design has a higher thermal resistance (longer copper tubes).higher thermal resistance translates into lower heat distribution efficiency. from what i see vostro's 1400 integrated video card has no copper tubes while T61 has one. since both CPU heat sink and video heat sink has to share same fan, you could tell why T61 gets hotter.

 

vostro, you're comparing apples to oranges!!!
How can you claim that Dells run cooler than Thinkpads when you're "comparing" significantly different processors?
400 MHz deficit in the clock speed makes a HUGE difference.
Plus your processors runs 2MB of L2 cache in comparison to the T7300' 4MB.

BTW, is that your screenshot or you just borrowed it from someone else?

 

it's my screenshot of course. you might need to understand what thermal design power is and what's thermal resistance.

 

What are you talking about?

 

You might just stop throwing around those terms and start making some sense.

 

OK
For how long have you run the test?
What was the ambient temp?

 

What was the ambient temp?

check my post.

For how long have you run the test?

20min.

 

on what settings? adaptive? high performance?

 

From Wikipedia, the free encyclopedia
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The Thermal Design Power (TDP) (sometimes called Thermal Design Point) represents the maximum amount of power the cooling system in a computer is required to dissipate. For example, a laptop's CPU cooling system may be designed for a 20 W TDP, which means that it can dissipate (either via an active cooling method such as a fan, a passive cooling method via natural convection, via heat radiation or all three modes of heat transfer) 20 watts of heat without exceeding the maximum junction temperature for the chip. The TDP is typically set not to be the most power the chip could ever draw (such as by a power virus), but rather the maximum power that it would draw when running real applications. This ensures the computer will be able to handle all applications without exceeding its thermal envelope, without requiring a cooling system for the maximum theoretical power, which would cost more and achieve no real benefit.

TDP can be defined in different ways by different manufacturers.
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If you think T7300 should be hotter than T5470, then T7300 should have a higher thermal design power, but in fact it has same as T5470, understand?

 

braddd, u don't understand what TAT is doing, it's irrelevant with settings.

 

explain. I am down to 42*C after 10 minutes of idle.

 

with TAT, ur cpu gets 100% load in both core regardless settings. if it's not 100% load, your setting could change cpu frequency, but with 100% load, it's working into highest frequency which yields maximum heat.

 

I know that... what is your point? Don't tell me turn on 100% load when taking idle temps.

What I am asking is: if you let the cores clock down when taking idle temps or if you kept them at their full speed. duh

 

we are comparing maximum temps, which shows how well each system to dissipate the 35W heat.

 

note that both T5470 and T7300 have same 35W heat when in 100% load.

 

ahh I confused "ambient" for "idle"

I was comparing with this post:

 

How do you know what's the T5470 thermal design?
I only see the T5500 at 34W as compared to the T7300 at 35W.
Besides, how can you say that one notebook dissipates heat better than the other judging by the TAT temp numbers alone?
Dell and Lenovo implement different cooling strategies.
I can barely hear the fan on my notebook, even at the highest temperatures running the TAT.

 

it's clear that T61 lost the battle to get the 35W heat out of box.

 

A battle would be with the same processor :/

You are trusting intel specifications. If you want to get out all of the variables, you gotta try it with the same processors.

 

There way too many variables to start with.
Yet, even the processor is not of the same familiy, let alone the clock speeds.

 

check with other vostro 1400 users who have T7300.

 

it's a matter how well to dissipate 35W heat no matter which chip generates.

 

No, you go there, collect all the info, and then come here to present your discoveries.

 

First of all, please show me Intel's stats on the T5470 thermal design.

 

don't bother to save a 81C hot garbage

 

what is that even supposed to mean? your temps for your T5470 at idle were way below the mean vote on the dell board. The most voted for option over there was 45C-55C and you are giving us idle temps of 37C? Do you live in a freezer?

 

just post my idle temp now: 39/39 in 23.9C ambient temperature.

 

I don't have a thermometer in my apartment, no idea of ambient temp.

Also note from this pic I am running vista... you are running XP.

 

i'm running vista ultimate.

 

i set the visual effects to best performance.

 

note your acpi temp is 47C while mine 40C

 

whats ACPI?

 

Advanced Configuration and Power Interface
http://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface

 

http://www.intel.com/technology/iapc/acpi/faq.htm

 

And how is it relevant?

 

hey vostro, even a monkey can google. How is acpi thermal zones relevant to this discussion? or are you just talking off yer a$$? your cpu might have 5 different thermal zones...another might have 6. point is they're different chips and you'll never have the same thermal zone temps let alone same _number_ of thermal zones from 2 diffrent processor families.

 

it means motherboard got higher temps.

 

you really dont understand what a thermal zone is do you? you brought it up...explain to all of us what its purpose in relation to ACPI is.

 

The dimensions of my T61: 12.3" x 10.0" x 1.1-1.3"

What is the dimension of your vostro?

Too many variables for the claims you make.

 

Dimensions
Width: 13.13" (33.3cm)
Height:1.53" (3.9cm)
Depth: 9.61" (24.4cm)

 

no doubt metal base helps to dissipate heat, common sense.

 

vostro is a just trolling..just ignore him. Wish there's an ignore feature on this forums.

 

I hope you enjoy the vostro, vostro. I know one thing, and it's that the vostro is not for me.

 

T61 is not for me too, too hot in full load

 

Man, the T61 really isn't that hot. Barely warm even. Sure it won't make indentations in your leg from being so heavy like a vostro, but it does the job well enough.

 

you might not be able to feel the heat but internal temperature tells itself. in terms of weight, no difference.

 

what are the specs of your machine vostro?

 

if a guy using vostro comes to a thinkpad forum, he's regretting not getting a thinkpad.

can't you guys see that?

700$ vostro VS 800$ T61, is it really hard to make a choice?