The GT300/Fermi Thread - Part 2!

[cegras]

An idle temperature of 70C is a complete disaster. It either means that cooling is terrible or that the power saving techniques are nearly non-existent.

This table is very inaccurate, at least for 285-5870 part. Not to mention 50%+ advantages of GTX480, lol.

No.

http://www.techpowerup.com/reviews/P...D_4850/24.html
http://www.anandtech.com/video/showdoc.aspx?i=3341&p=22
http://www.overclock.net/ati/348442-...ur-4850-a.html

You should educate yourself on the difference between heat and temperature.

To repeat myself, if idling at 70 is really true then that means the cooling solution is being throttled for the sake of acoustics. E.g. the maximum fan speed is determined by the minimum noise threshold. This implies that at that certain fan speed, the heatsink only has enough heat removal power to have the temperature at 70. Which further implies that screaming is inevitable when you start loading the card.

What you can infer from this is in fact the cooling solution have to be loud and heavy duty for when the card really starts eating juice. Which means the fan will not have the best acoustics, again implying (gosh, so much extrapolation) that it does have good low speed acoustics.

But when you read ideling @ 70C with Fan at 70% makes you think that his source is smoking something or sitting in a 50C ambient

Acoustics, my friend.

"The problem is that this creates heat, and a lot of it. Both of our sources said that their cards were smoking hot. One said they measured it at 70C at idle on the 2D clock.

The fans were reported to be running at 70 percent of maximum when idling, a number that is far, far too high for normal use. Lets hope that this is just a BIOS tweaking issue, and the fans don't need to be run that fast. It would mean GF100 basically can't downvolt at all on idle. On the upside, if it's any comfort, the noise from the fans at that speed was said to be noticeable, but not annoying."

This is the dustbuster threshold for idle.