AMD Justifies Using Liquid Chamber Tech On Upcoming 7900-Series Cards

[John Doe]

The point was there was no difference between core sizes if there was 65nm would have a different power curve than 45nm and would have to be labeled as such. Point is it doesn't.

There is because manufactoring process gets improved along with a die size decrease. That's why nVidia's monolithic GPU's (like GF100) pull more power than GF104's and alike's.

Its also a specifically binned server chip that was designed to be an 80w TDP chip. The same can be done with a larger die. AMD does it all of the time there are tons of 65/90nm chips rated at the same TDP same clocks etc.

Yes, it's not "just" the die size that matters. But it's also a factor along with the process, core count, cache etc.

So is comparing two different GPU's on two different PCB's while your at it why not throw in a 4870 for comparison that'll make it accurate.

Compare a G92 to a G92b then, G92b pulls lower power even on the exact same PCB (Long 9800 GTX+ over long 9800 GTX). Look at this

http://www.hardwarecanucks.com/foru...evga-9800-gtx-512mb-video-card-review-17.html

 

[cdawall]

The G92B are also lower VOLTAGE. Which leads to lower WATTAGE. There is NO LESS power consumption just because die size decreases. There HAS TO BE a voltage change as well.

 

[sliderider]

With better manufacturing you get lower leakage chips that run at lower voltage that in turn lowers TDP. Yet again manufacturing die size has nothing to do with TDP.

Have you seen the specs for the HD7870 yet? It's a die shrink of HD6970 and it's power requirement dropped from 250W for HD6970 to 120W for HD7870. Now, do you really think the HD7870 is going to have the same cooling requirement as HD6970? LESS cooling is going to be required and that is solely because of the die shrink because otherwise they are identical with the same basic specs.

 

[EarthDog]

Reference heatsink are all inferior to the aftermarket ones. How can one come to the conclusion that stock coolers are good these days (EDIT: OP said High Quality, w/e the heck that means for good performance)? Pass the dutch to the left before posting...

This is interesting but I run an open bench, thus my card isnt orineted like that, so it would see to be less effective, no?

 

[qubit]

Reference heatsink are all inferior to the aftermarket ones. How can one come to the conclusion that stock coolers are good these days (EDIT: OP said High Quality, w/e the heck that means for good performance)? Pass the dutch to the left before posting...

This is interesting but I run an open bench, thus my card isnt orineted like that, so it would see to be less effective, no?

I think nvidia's stock coolers on the 8800 GTX, GTX 285, GTX 295 & GTX 580 are all good. I'm saying this, as I have all of these cards. The fact that a third party one had better be better, you betcha!