ASIC quality

[Octopuss]

I just came by a post by The Stilt over at Litecointalk saying

Higher stock VDDC = less leakage, lower stock VDDC = higher leakage.

Lower the leakage the better.
The scale displayed by GPU-Z has gotten people thinking that higher "ASIC Quality" the better.
Actually it is completely the opposite, the value which is actually interpreted by GPU-Z is called "LeakageID".
Higher the value, higher the leakage.

So actually you want as low ASIC quality as possible.

Parts with low leakage require higher VDDC to operate, but their current draw is much lower because of the lower leakage.
It is not the dissipated power alone which heats up your graphics cards (GPU, VRM) it's the current too.

You can try what happens if you put 100A @ 1V thru an 18AWG cable compared to 1A @ 100V.

Interesting. Is it true?

 

[RCoon]

I just came by a post by The Stilt over at Litecointalk saying


Interesting. Is it true?

Fairly certain it says this on the GPU-Z page regarding ASIC and how to read into the results of the ASIC Quality.

 

[W1zzard]

Depends on your definition of "quality"

 

[ISI300]

Higher ASIC quality in post-Fermi nVidia GPUs equals lower voltage, lower voltage to overclock on air, lower temperatures. Some GTX 460s could hit 850 with 987 milivolts whereas some require upwards of 1050 milivolts to do so.