Coolest CPU right now (Temp)

[Rast]

Hi readers,


I am looking for a cool( low temperature) CPU just for watching movies/series.

looking for a cpu what runs @ 27c below. any thoughts what cpu can stay below 30c?


right now i am running my i5 2500k at 40c (OC to 4,6 running with Mugen 3)

but my room ambient running to hot compare to other rooms. guessing 25c degrees.

thanks for help

 

[pantsaregood]

Ivy Bridge emits less heat than Sandy Bridge does. The cores just get hotter because the die size decreased more than the power consumption did.

The Core i5-3470T has a TDP of 35W with the GPU enabled. I'd honestly expect it to run at a significantly lower TDP in practice, though. My 2500K idles around 5W according to HWMonitor.

The 3470T is a dual-core, though.

 

[AnonymouseUser]

The cheapest solution would be an i5 2500k at stock or underclocked speeds. A better HSF (eg, H2O) may help as well.

 

[lakedude]

There is a difference between heat and temperature. Say you need to melt a 15cm icecube. Which will do the job, a bathtub full of warm 95C water, or a red hot needle at 650C?

You asked about temps but CPU temps are a function of how much heat the CPU generates vs how fast said heat is dissipated. A better heatsink will keep any given CPU cooler.

What you want is a CPU that generates less heat by using less power combined with a good heatsink.

The Llanos are excellent HTPC chips because they combine a decent CPU with a decent on board GPU, eliminating the need for a video card. 1080p content is no problem with a Llano. The little $60 A4 is all the CPU your need.

http://www.newegg.com/Product/Produc...82E16819106014

Intel's low end chips tend to lack a decent GPU so you could buy a cheap Intel chip but then you will most likely need to also purchase a separate graphics card to play 1080p...

 

[pantsaregood]

Using a better cooler doesn't make a CPU produce less heat. That includes extreme cooling methods.

Ivy Bridge cores run hotter than Sandy Bridge cores, but Ivy Bridge will heat your room up less because it actually dissipates significantly less heat.

 

[Binky]

Why is running below 30C important?

 

[Homeles]

Using a better cooler doesn't make a CPU produce less heat.

Leakage increases as temperature increases.

 

[Rifter]

If you ambient is 25c and you want it running below 27C your only option is going to be a water loop with a cooler to chill the water. Its going to be really expensive. Or LN2.

 

[LxMxFxD4]

Just underclock / undervolt your cpu while you watch movies. Also, take out your video card, spin down unnecessary hard drives, etc. If you dont want your room to be hot, that is the only solution.

 

[lakedude]

Using a better cooler doesn't make a CPU produce less heat. That includes extreme cooling methods.

Good point! The heat sink matters a lot for temperature but does not make a big difference in heat except as Homeles pointed out, the leakage does go up as a CPU gets hotter. More leakage = more heat generated.

Ivy Bridge cores run hotter than Sandy Bridge cores, but Ivy Bridge will heat your room up less because it actually dissipates significantly less heat.

Yes, exactly! At stock settings an Ivy will use less power and henceforth generate less heat, even if the smaller die gets hotter temperature wise.

 

[pantsaregood]

There is more thermal leakage as temperature increases, but I doubt there's a significant difference in leakage between a stock cooler and something like a Hyper 212.

I will admit that I make that statement out of blind conjecture, though. My assumption is based on the knowledge that the 10-20C difference a higher end air cooler can make is relatively insignificant on an absolute scale.

 

[ShintaiDK]

Temps means nothing (Unless above tjmax). Amount of heat produced do.

Your chipset is around 80-100C if you had a sensor on it btw.

 

[Maximilian]

Ivy bridge is pretty cool right now although people with SB-E are still considered cool by most. Sandy bridge is so 2011.

 

[Rifter]

Ivy bridge is pretty cool right now although people with SB-E are still considered cool by most. Sandy bridge is so 2011.

i see what you did there

 

[pantsaregood]

Temps means nothing (Unless above tjmax). Amount of heat produced do.

Your chipset is around 80-100C if you had a sensor on it btw.

Chipsets run that hot now? I was under the impression they'd run pretty cool, since what we call a chipset now used to be a Southbridge, and those didn't even have heatsinks on them for a very long time.

 

[ShintaiDK]

Chipsets run that hot now? I was under the impression they'd run pretty cool, since what we call a chipset now used to be a Southbridge, and those didn't even have heatsinks on them for a very long time.

Plastic casing etc helps keep heat up even when they only use 3-4W. Same with other components. And no, you dont actually need heatsinks on them.

People only panicking when they started to see the actual temps. The silicon never cared.

 

[Coup27]

I am looking for a cool( low temperature) CPU just for watching movies/series.

If all you want to do is general PC duties (web/office etc) and watch movies, you can look at the Sandy Bridge Pentiums or i3's.

My i3-2130 with a stock HSF at idle right now is 35c on both cores. Ambient must be around 20-25c as its damn hot today.

I'd look at either an i3-2120T or G630T. If the iGPU isn't good enough for your needs, get a cheap passive AMD or nVidia card.

 

[soccerballtux]

Ivy bridge is pretty cool right now although people with SB-E are still considered cool by most. Sandy bridge is so 2011.

lol!

 

[Rast]

Thanks for all replies,

I tried to underclock&undevolt but the result aren't that good what I expected:

i5 2500k Sandy bridge using a Scythe Mugen 3 cooler
my OC settings: 4,6 Ghz (1.36v) quad core, 60c at load, 40c idle( I know really hot)

UC settings 2,2 Ghz dual core (0.90v) 38c at idle

single core 1,6Ghz (0.88v) 37c at idle, 41c at load

I tried my HTPC from the livingroom, a AMD A6-3500 APU at 3Ghz OC at idle 28c and 41c at load. used a AMD 1090T stockcooler. very loud at load.

planning to switch to a scythe big shuriken rev B.



again thanks for your thoughts.

 

[Binky]

So you're not happy with an idle temp of 28C in an overclocked CPU? I don't understand the issue, unless "loud at load" means a normal load encountered in normal use (not a stress test). If it's only hitting 41C at load, you can turn the fan down to quiet it. There's no problem letting it run hotter than that. Is this system in a small case, and maybe in an enclosed space? Why are you overclocking an HTPC?

Also, your 2500k overclocked to 4.6ghz idles at 40C. There's nothing wrong with that.

 

[lakedude]

I'm still not sure what you are trying to do. Are you looking for a CPU with a low heat output to avoid room heating, or are you really concerned about the actual CPU temperature for some reason? Remember heat and temp are 2 different things. Heat is pretty much directly related to power consumption, a lower power computer will generate less heat.

 

[Rast]

So you're not happy with an idle temp of 28C? I don't understand the issue, unless "loud at load" means a normal load encountered in normal use (not a stress test).

Also, your 2500k overclocked to 4.6ghz idles at 40C. There's nothing wrong with that.

nah the problem was the i5 2500k, i want him be cooler. now i just took the HTPC from the livingroom. to test it.

I think i will take the HTPC for the summer use, less power use, my room will be cooler.

 

[Binky]

Just turn down the overlock and ignore the CPU temps if they are within reason (below 60C).

 

[Rast]

Just turn down the overlock and ignore the CPU temps if they are within reason (below 60C).

sorry my room is getting to hot because of the i5 2500k.

 

[VirtualLarry]

get an e-350 rig if you are concerned about temps.