Does ASIC Quality matter?

I was wondering about this as I tweaked with my notebook's GPU clocks, and I was using GPU-Z. My GTX 860M's ASIC comes out to be 69.5%. Does this value have any significance? Below is an image from the GPU-Z ASIC Quality reading:

How true are the statements in the image? Do I need to worry about having such a 'low' ASIC score? And back to the title: does the score even matter, or is it just some number coughed up by GPU-Z after taking readings of some components?

 

http://forum.notebookreview.com/threads/your-gpu-silicon-quality-gpu-z-asic-test.649844/

Its score is written to the gpu by the manufacturer. It isn't a definitive number though take it with a grain of salt.

 

My ASIC quality on both my 980M GTXs is 73% but I read on OC Forums that it means nothing, some people has had great overclocking capability even with a 63% ASIC quality

 

I heard that ASIC quality does directly determine the voltage tables for Maxwell. Other than that, it doesn't really matter much.

 

i remember on the TI forums that J95 was asking for people's ASIC scores and stock voltage with a stock vbios.

 

Yep, Prema does the same.

 

I'm fairly certain that's to get a feel of what voltage tables they should be dialing into their vbios / drivers.
ASIC affects how much voltage is need when OCing. High ASIC generally needs less voltage but still doesn't guarantee is awesome OCing card.
There is also the other parts of the GPU's quality that don't get reported, yet also have an impact on OCing.

 

Ah, I understand. My own GPU used 1.18 V (before a motherboard swap) at stock clocks with an ASIC of 67.3%; now it uses 1.10 V (ASIC 69.5%). 80 mV difference for about 2.2% ASIC? That's quite a lot.

 

it is a lottery after all.

 

Am I being an idiot or is that only an 8mV difference?

 

milli is 10^-3 so if you move the decimal place over 3 places it is indeed 80 mV!

 

lets see here....
8mV = 0.008V
Original V = 1.18V
New V = 1.10V
Difference = 0.08V = 8cV = 80mV

 

Okay, I was an idiot when I was tired as hell at 2AM, got it. Thanks for clearing that up!

 

No problem mate we all have those days haha

 

High ASIC = lower default VID but higher leakage as voltage is increased
Low ASIC = higher default VID but lower leakage as voltage is increased

For non-Maxwell cards, low ASIC is actually an advantage since the lower leakage means the chip can often be pushed further and harder than one with a higher ASIC. For this reason the 780 Ti Kingpins are all binned for low ASICs (<65% I believe) so they'll have plenty of headroom before the leakage starts becoming intolerable

Maxwell is an oddball, because it doesn't voltage scale worth jack until subzero, so chips with high(er) ASICs values can sometimes go a bit further because of the lower default VID. But again, this is simply a consequence of the fact that Maxwell doesn't scale with voltage until subzero.

 

High ASIC chips are better suited for desktops due to leakage which increases heat despite lower voltage.

That's pretty much the only thing that your ASIC score is good for besides being used as a unique identifier for your card(s).

 

What and how exactly does a GPU 'leak'?

 

voltage leak?

 

Yup voltage leak... More like a power leak, generates extra heat and reduces performance..

Sent from my LG-H811 using Tapatalk

 

As transistors get smaller, electrons are able to migrate freely among them and leakage current becomes a problem. For a more scientific answer, Wikipedia has a good explanation.

https://en.m.wikipedia.org/wiki/Leakage_(electronics)

Read the part under semiconductors.

 

Fun fact the pentium 4 never released at 4ghz because almost half the power consumed at that point was leakage - eek.

 

Where in GPU-Z do I click for my ASIC percentage?

 

Click the top-left of the window or right click on the top of the window. A menu should appear, and checking the ASIC % should be an option.

 

That doesn't surprise me at all. Pentium 4 was a disaster.