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What gives out more heat?

RavenXXX2 said:
480 default fan ramps up in the 80c range and therefor you're left with misleading temps, the 260 I had ramped up way earlier so kept temps down as I'm sure the 280 does. I would say temps are about equal between the 280 and 480 going by anandtechs temps with the 55nm 285 " 280 was on the hotter 65nm process "

http://www.anandtech.com/bench/Product/166?vs=158&i=121.123.122
Click to expand...


Cheers Raven, just what I was after. Im thinking of getting one to replace my sli 280's and watercool it. Hence the question about temps. My 280's idle at around 35 degrees and they are both in the same loop so if the 480 does run a touch warmer im sure temps will be fine there to.

Cheers mate
 
Going by this old review:
http://images.anandtech.com/graphs/nvidiageforcegtx480launch_032610115215/22207.png

there was 65W different in power consumption between a 480 and 285. Granted not same as a 280 but I would have thought the 280 and 285 was similiar. Considering most of the power consumes gets turned into heat, the 480 must produce more heat than the 285s/ 280s...

EDIT: 5W of difference in power consumption betweeen 280 and 285
http://images.anandtech.com/graphs/gtx285launch_011509005146/18003.png
 
Last edited:
ChrisLandin said:
Cheers Raven, just what I was after. Im thinking of getting one to replace my sli 280's and watercool it. Hence the question about temps. My 280's idle at around 35 degrees and they are both in the same loop so if the 480 does run a touch warmer im sure temps will be fine there to.

Cheers mate
Click to expand...

Air cooled temps are irrelevant. Heat's not the same as temperature. If you're talking about water cooling you should be looking at the power consumption. Assuming a full cover block, SLI-280 will radiate way more heat than a 480. Everything else being equal loop temps under load will be lower.
 
Fx-Overlord said:
Going by this old review:
http://images.anandtech.com/graphs/nvidiageforcegtx480launch_032610115215/22207.png

there was 65W different in power consumption between a 480 and 285. Granted not same as a 280 but I would have thought the 280 and 285 was similiar. Considering most of the power consumes gets turned into heat, the 480 must produce more heat than the 285s...
Click to expand...

Well the OP is running TWO 280's in his loop, do you think one 480 will put about more heat than what's already in there? As said the 285 is on a smaller 55nm process, it will use a fair bit less power than a 280 on a 65 nm.
 
In terms of actual heat given out by any card it is very simple to tell, energy in = heat out.

In terms of how well the cooling works to keep the card cool, and how well it vents heat outside the case that is another matter.
 
RavenXXX2 said:
Well the OP is running TWO 280's in his loop, do you think one 480 will put about more heat than what's already in there? As said the 285 is on a smaller 55nm process, it will use a fair bit less power than a 280 on a 65 nm.
Click to expand...

If that's the case then agreed:
ONE 480 is less than TWO x 280s for heat :)
 
fornowagain said:
Air cooled temps are irrelevant. Heat's not the same as temperature. If you're talking about water cooling you should be looking at the power consumption. Assuming a full cover block, SLI-280 will radiate way more heat than a 480. Everything else being equal loop temps under load will be lower.
Click to expand...

Which is what I was thinking. Cheers. My feeling was that a 480 would sit cooler on its own loop as opposed to a pair of 280's. Was just wanting to check that my thoughts were right.

The main reason for the ask is that i run a dual loop in a 800d case and my gpu loop is running through 2 240 rads in the bottom compartment. Ive modded one side panel to dump all the heat out of one side and im waiting on a new side panel to arrive without the vision panel so I can mod that to to allow for a much better intake of cool air. I wasnt wanting to run the risk of getting the card a little toasty before the mod was done.

Cheers
 
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