does a powerful CPU make the video card be less hot ?

hi !

in this time of great heat (weather and nVidia ) i'm wondering this question :

If i buy a notebook with a very powerfull CPU, will the graphic card will be less hot than the same notebook with lower CPU ?

Do you think a notebook alienware M15x with X9000 cpu (2.8GHz) and Nvidia 8800 will be colder than another one with T8100 cpu (2.1GHz) and also nvidia 8800 ? or not ?

Can i say that ?

i'm thinking is a good question because powerful CPU is cheaper than highest video cards !

Of course i'm speaking in a context of gaming or 3D application rendering, not in office/web applications !

what do you think ?

 

Well, I would have to say that the processor being more powerful won't make the video card work less. The video card and processor work in tandem. The more demanding the software, the harder the processor and video card work. If you go and try to run Crysis on a laptop, then it will definately be working overtime and you will notice the areas that house the processor and video card get hotter and hotter.

 

that's why they make cooling pads...or do what i do..
use your air conditioner..put a fan close by and let her blow!


its 2:39pm here..my 6 week old just fell asleep..i am soo tired i'm being dorky...
i am allowed to ..its mom perks!!

 

Which kind of defeats the "notebooks are more power efficient" model doesn't it? :laugh:
Instead of running a ~400 watt desktop, why not run a 1000 watt air conditioner + 90 watt laptop!
[ I'm just being facetious ]

 

I guess a CPU, with a higher FSB, would provide more bandwidth to the GPU. So, a CPU with a higher FSB would make a GPU run better and faster (hotter? Not Sure). In a game, CPU normally provides the physics realism and fps, whereas the GPU provides the graphics support (shaders, shadows, lighting, textures etc etc), so they pretty much do not depend upon each other when playing a game, but the game depends upon both the CPU and GPU. I won't say a faster CPU causes the GPU to operate at a higher temp, unless someone comes up with some benchmark or comparison chart etc for it.

 

1.
does a faster FSB produce more heat on the motherboard than a slower one ?

2.
does a smaller (45nm) cpu and higher like T9600 (2.8GHz) produce less heat to the motherboard than a bigger (65nm) and equal speed one like the X9000 ?

3.
What does reduce the more heat, increase speed or minimize size of the components ?

 

1. One would worry about heat from a higher FSB only when overclocking. The newer platforms supporting higher FSBs, also have improved architecture, which is able to dissipate the heat well, hence keeping the temps low even when the CPU is operating at a higher FSB frequency on a new platform.

2. Yes, a 45nm CPU will produce less heat and is more energy-efficient. The Penryn XE X9000 is same as any of the Penryns, but the extra heat (due to the 45W TDP) will be produced when it is at full load. It is the same as the T9500, with an extra 10W TDP and with one higher multiplier which is also unlocked. ( 45nm Technology)

3. Speed and size of what..??

 

actually having a faster processor should make it run hotter, but it depends on the laptop. Most laptops today hsare the same fan for the cpu and gpu heatsinks. So having a faster processor, equals more heat for the fan to dissipate. since the gpu and cpu heatsinks are placed right next to each other, heat will conduct from one to another, over the 1mm air gap between the heatsinks. This will cause the gpu to get hot through heat conduction. It will not be a very large amount, but it may be 5-10c more.
Plus the X9000 uses much more power than a standard powered chip like the t9300 or something like that. The standard ones use 34 watts, and the X9000 uses 45 watts to my recollection. That is a lot more heat, and will cause the system temperatures to increase, especially if one fan cools both teh cpu and gpu.

if the cpu and gpu share different heatsinks the temperature will not change at all for the gpu.
I had a 3800+ amd dual core in my laptop and my quadrofx2500m runs the same temperature as it does with my Opteron 185 which has much more processing power than the ole 3800+. (mine has separate heatsinks for cpu and gpu)

K-TRON