Temperature

I'm curious ... I wish I could benchmark this but I don't have the money to do that lol. Anyways, I was wondering which system do you guys think would run hotter over all, while gaming or just in general? I highlighted the only differences between the two

System one:

-4GB DDR2
-NVIDIA GeForce 9600M GT
- Windows Vista Home Premium
-320GB (5400RPM) Hard Drive (SATA)
- P7350 (2.0 GHz)
- 15.4" Diagonal WXGA High-Definition (1280 x 800)

System two:

-4GB DDR2
-NVIDIA GeForce 9600M GT
- Windows Vista Home Premium
-320GB(5400RPM) Hard Drive (SATA)
- P8400 (2.26GHz)
- 16" widescreen (1366x768)


My thoughts:

- Does the P8400(Thermal Cap.105) actually run cooler than the p7350( Thermal cap.90)?...I know the thermal cap for the p8400 is higher but it has a higher clock speed so would there really be much of a diff?

- GPU will have to work 2% harder in system two because 2% higher res? so temp would be at least 2% higher for GPU?..... OR will the P8400 in system two paired with the GPU cancel the resolution difference out? So that the GPU won't be working any harder between the two systems.

Conclusion: system two runs slightly hotter by 2-3 %

What do you guys think? And please correct me in anyway if I'm wrong

 

Difference between the specs are very small to say anything conclusive. Since one is 15.4” and the other is 16” they are two different notebooks, heatsinks and fans are different, without running actual benchmarks it is impossible to say.

Even two identically configured notebooks from two different manufacturers will run at different temperatures due to differences in the cooling assembly and design of the notebook.

 

Without knowing the manufacturers of the laptops, it's impossible to say. Some worse-specced HP laptops, for instance, generate much more heat than say, a Lenovo Thinkpad that runs faster.

That said, from what you've provided, I would say that the components themselves run at almost the exact same temperature - the CPUs are from the same generation and family, and have the same TDP. The screen size will not have an impact on heat generated (except that they are different laptops, and may have different thermal qualities).

 

you need to know what kind of heatsinks the laptops have, and their fan control parameters.
If you were basing the difference in temperature just based on the cpu, and the rest of the notebook being the same, the P8400 would generate more heat.

However we do not know this, cause say you are looking at system 1, and it has a separate heatsink for both the cpu and the gpu. While system 2 has a shared heatsink for both the cpu and gpu.
Well in that case system 2 would run hotter.
It is always better to have twp separate heatsinks, it is more efficient than having one.

K-TRON

 

If your conclusion is correct and going by the spec's you've provided, you'd be in the ball park or not far off. If so, you'd be talking about temps that could range from about 0.6%c to 1.5%c give or take, if you go on what most here would say modern notebook temps are.

Dude it isn't worth losing sleep over.


My conclusion to your question, you're way to curious!

 

Well these are the two laptops I been trying to decide between:

http://www.bestbuy.ca/catalog/prodd...95CEE3CF80BE24A149E9C39CB2B77F0&test_cookie=1

http://www.staples.ca/ENG/Catalog/cat_sku.asp?webid=762478&CatIds=&AffixedCode=&=&= (use postal code t8s 5g7 to access )


But yeah I definably agree with everyone especially with S P Q R ... I couldn't help but laugh when I saw what you said. I knew this was overboard and I was expecting someone to call me insane lol. Most definably not worth losing sleep over. Either way, would someone by chance have an idea about these two Hp laptops... if they do in fact have separate heat sink for CPU and GPU?

 

actually i completely disagree with spqr. he is basing those values off of clock speed
If spqr's theory was true, how come the Opteron 185 in my laptop which uses 125 watts of power runs cooler under load than every socket P 25 watt processor. Huh. Well its cause their is a big difference in the cooling system.

Back on topic
You are looking at a HDX16 and a DV5
Knowing from experience with HP, the fans are not going to come on low until 140F is reached. The fans will then come to high around 175F.
Now from seeing the inside of the dv5, the heatsink leaves a lot to be desired. It has a shared heatsink for the chipset, CPU and GPU. The size of it is very small, and people have noted upwards of 90C temperatures at load.
The HDX16 has a little better cooling system, but its still the same.
Honestly both are going to get hot, but if you put my moneys on a cooler running system its going to be the HDX 16.

This is the heatsink in the DV5:


and here is an image of the heatsink in the HDX16:


Just looking at the heatsinks, the HDX16 has a more impressive cooling unit.
So I would say peak temperatures are probably around 15C lower with that system.

K-TRON

 

Companys dont exactly just stick a fan and say hail mary. They need to fulfil intels cooling requirements posted below which involves calculations.

http://download.intel.com/design/intarch/designgd/320028.pdf

On a side note, i also learnt from that page that Intel uses Shin Etsu thermal paste. Im going to buy it next

 

Just where does my post lead you to concluded I'm talking abut clock speed?

If you have a problem reading what I or what the OP said , we might need to write slower for you!

Most people posting their HW monitor (who have what I would say are modern notebooks) aggregate temps range from 45c to 55c give or take.

2% of 50c is 1c. his talking about total system temps, 2% or 3% of a total system temp isn't worth talking about and no matter how many picture you post it will never be anything worth talking about.

My friend you're not the person I consider insane, just a bit of a worry wart. I guess it's your money and you'd be allowed to be.

 

I assumed you were getting it from the clock speed, but even if youre getting it from other laptop temperatures it is still wrong. The only way to get a good idea of the temperatures the system will run are, 1) looking at the heatsinks and 2) asking people who actually own the laptop what temperatures they are running.
Every laptop is designed differently, so you cannot generalize

K-TRON

 

You need help serious! And if I want to generalize when I'm talking about 1 to 2 degrees Celsius I will.

2 or 3% in temp difference in any notebook does not matter, only an idiot would think otherwise.

Maybe you should stop assuming and start reading what was actually posted, even the op agrees that 2 or 3% difference in temps between two different notebook is not worth talking about

 

Wow, I wasn't expecting pictures of the two different cooling units. That's great, thank you very much for that comparison. And on your opinion to which one you think is better.

 

The HDX 16 will run cooler than the dv5t. Like K-TRON said, the HDX 16 has a slightly better cooling system, and also a larger frame to dissipate the heat from. In the HP subforum, you'll notice that there are fewer complaints of HDX 16's overheating than dv5t's - the dv5t with the 9600M runs notoriously hot.

 

Whoa nice!! Well that's that, finally. Thank you all for all the input, I greatly appreciate it. I'll be going with the HDX 16". Man... funny thing though, the HDX 16' was my first choice. And well, here I am going back to it.