Low heat output processor

Do you know which processor (preferably single core) yields little heat?
I know Celerons do not have the speedstep option so they generate heat no matter what, but what about Pentium M's, Semprons and single core Turions?
Yes, yes. They may be a little outdated, but price is an important issue for me.

Can dual cores yield less heat than single cores?

Thanks!

 

you have to check out their watt output, as heat correlates with wattage. you could consider undervolting your cpu which will significantly drop your cpu heat. another thing to mention is that you might want to consider a low voltage processor, as they would give off the least amount of heat...though they are usually found in ultraportables.

 

I'd definately go with Intel over AMD for less heat.

 

My first laptop was a Toshiba Sattelite Pro with a Pentium M chip. It handled quite well, I use to play Battlefield 2, and even then it didn't heat up too much. It only had 128MB graphics card.

 

This is much more a matter of a particular notebook, rather than processor. Some notebooks have some very ill designed cooling, and as a result, they will often run hot, and when not cleaned regularly, run into stability issues. Other notebooks, on the other hand, could have very good cooling systems, that would keep the processor cool under very heavy processing. Its difficult to say to with AMD or Intel, because both have their heat problems on some notebooks.

ejl made a good suggestion, in that you could undervolt the processor, which would reduce temperatures, and also lower power consumption.

 

The last generation of Pentium M CPUs would usually undervolt quite well and, unlike the Core series CPUs, the minimum voltage was not locked. Many of those CPUs would run at about 0.8V at minimum speed and 1V at maximum speed. However, there is always a chance that you might get one which won't undervolt very well.

Most of the normal Core series CPUs will undervolt quite well but their minimum voltage is locked at 0.95V. Intel does produce low and ultra-low voltage versions of these CPUs but they cost more and, I think, the ULV chips are soldered.

Are you planning to look for a computer which runs cool and quiet or do a CPU replacement? Pentium M powered notebooks are still around and tend to have more battery life (which means less heat being produced) than current models. The various power-saving tweaks in the newer hardware failed to offset all the extra transistors leaking power.

While AMD undercut Intel on power consumption at the desktop level, they have never come up with very low power notebooks.

Maybe you can find on old notebook with a Transmeta Crusoe CPU. They were designed for low power consumption (but were relatively slow).

John

 

I would go with the Pentium M. That's what I have and I barely get warm.

 

The memory of the graphics card doesn't exactly matter. It is the type of card that does...what was yours?

 

Agreed. I've worked on 700Mhz P3's that got just as "hot" as some desktop Athlon64's stuffed into notebooks. It is more a matter of lappy design and the user's ventilation practices that determine how warm it gets.

 

Ok, then. What laptop design allows for good ventilation? What producer acomplishes this (besides Toshiba, if I understood well) ?

Thanks

 

Brands that are mainstream like Toshiba, Dell and HP, have cooling designed that would normally meet the TDP requirements of each processor. Those companies would design cooling that is good enough, and would keep the processor within a temperature range that wouldn't be a problem, but the user could deem it as hot. For example, HP may believe that a processor at 60 C will be fine, and it will, but a user may see that as being a little on the warm side.

Companies that build notebooks for enthusiasts will put alot more effort into cooling design. For example, Clevo, who build high end gaming notebooks, use complex and very effective cooling methods. Since they don't have to sell notebooks in such high numbers as HP, Dell of Toshiba, they can spend a bit more of the developing money on a better cooling system.

But generally, smaller notebooks (12.1" or 13.3"), get warmer because of their size. Larger 17" and alot of 15.4" are cool because of their larger and more effective cooling systems, because they have more physical room for that cooling system.

 

It was a ATI MOBILITY Radeon X600SE graphics card 128MB.