Is ASIC quality reliable ?

YesImAfroJack · 12 Feb 2013 at 17:30

Recieved my 7950 Gb wf3 today and before i began looking at overclocking i was curious about the ASIC quality. It was 58 %. Is the figure reliable in determining how good of a clocker the card is ? so far I have 1200core and 1575 mem ( as high as afterburner allows ) on 1.1v. Is that any good ?

~Dockie · 12 Feb 2013 at 17:32

i'd say thats pretty good. as a comparison, my vapor-x is 66% and i cant get much higher than 1200/1500 even with 1.3/1.6v

nlel1975 · 12 Feb 2013 at 17:36

~Dockie said:
i'd say thats pretty good. as a comparison, my vapor-x is 66% and i cant get much higher than 1200/1500 even with 1.3/1.6v

Hey I have the same card as you and I am finding 1150/1500 stable. Although once in 3D Mark 13 I saw some artifacts for a second or two although I have been unable to reproduce this in subsequent tests so have left it at 1500.

YesImAfroJack · 12 Feb 2013 at 17:39

So ASIC is either inaccurate or irrelevant it seems

~Dockie · 12 Feb 2013 at 17:47

knowing my luck i probably got the worst card of the batch, but anything above 1350mem causes artifacts in 3dmark.

nlel1975 · 12 Feb 2013 at 17:51

~Dockie said:
knowing my luck i probably got the worst card of the batch, but anything above 1350mem causes artifacts in 3dmark.

Really I noticed you have 1150/1400 in your sig are you not running it at that speed anymore?

With mine at 1150/1500 I only ever saw artifacts in 3D Mark 13 once and have not been able to reproduce it in 3D Mark 13 or in any other benchmarks or BF3.

I have mine set to 1.137 in triXX and have not touched the memory voltage.

Ripshod · 12 Feb 2013 at 17:52

I'm thinking the ASIC is highly innacurate, especially after reading members compare figures and clocks on various forums.

1150/1550 on HIS HD7950 FAN (reference and no volt adjustments) and only scoring 64.2% on ASIC. mmmmmm

panyan · 12 Feb 2013 at 17:58

Ripshod said:
I'm thinking the ASIC is highly innacurate,

+1

~Dockie · 12 Feb 2013 at 17:58

nlel1975 said:
Really I noticed you have 1150/1400 in your sig are you not running it at that speed anymore?

With mine at 1150/1500 I only ever saw artifacts in 3D Mark 13 once and have not been able to reproduce it in 3D Mark 13 or in any other benchmarks or BF3.

I have mine set to 1.137 in triXX and have not touched the memory voltage.

im at 1000/1250 now. i haven't got round to updating the sig yet though.

i used AB, but ill see what trixx is like.

nlel1975 · 12 Feb 2013 at 18:03

~Dockie said:
im at 1000/1250 now. i haven't got round to updating the sig yet though.

i used AB, but ill see what trixx is like.

Ah that sucks! get version 4.4b of triXX which allows core voltage increases (but not mem)

For me 1150/1500 seems stable and I know any instabilities will be caused by the memory setting which is OK because the core has the most influence on performance anyway.

As I say so far had no reason to reduce from 1150/1500 back down to 1150/1400 apart from that one split second artifact I saw once in 3D Mark 13 during the Cloud Gate demo.

YesImAfroJack · 12 Feb 2013 at 18:03

is there a way to get over the 1200/1575 barrier ? I know others have done it , link to a thread i haven't seen perhaps ?

nlel1975 · 12 Feb 2013 at 18:05

YesImAfroJack said:
is there a way to get over the 1200/1575 barrier ? I know others have done it , link to a thread i haven't seen perhaps ?

I think you need to just keep chucking voltage at it which is not something I really want to do and am happy with the extra I already got over stock.

Rroff · 12 Feb 2013 at 18:05

ASIC quality only seems to give a general indication as to whether the core responds best to voltage or temperature when overclocking and not much more. (Even then you'd have had to play with a few cards with varying qualities to get a feel for what its telling you anyhow).

hedgey · 12 Feb 2013 at 18:09

no its actually irrelevant.

YesImAfroJack · 12 Feb 2013 at 18:11

nlel1975 said:
I think you need to just keep chucking voltage at it which is not something I really want to do and am happy with the extra I already got over stock.

I meant more to the point that the sliders on afterburner only go up to 1200/1575 with me.

nlel1975 · 12 Feb 2013 at 18:14

YesImAfroJack said:
I meant more to the point that the sliders on afterburner only go up to 1200/1575 with me.

That is not necessarily a bad thing. The hours I have wasted trying to get 24/7 stable overclock.

~Dockie · 12 Feb 2013 at 18:20

YesImAfroJack said:
I meant more to the point that the sliders on afterburner only go up to 1200/1575 with me.

if you start AB with a -xcl flag, itll let you go higher

YesImAfroJack · 12 Feb 2013 at 18:28

~Dockie said:
if you start AB with a -xcl flag, itll let you go higher

Did the trick , looks like I'm going to be spending tomorrow finding stable clocks

but i think in the end 24/7 clocks of 1200/1575 are brilliant , with good temps and low noise. I'm one of the fortunate ones

@nlel Us humans we always want more

nlel1975 · 12 Feb 2013 at 18:34

YesImAfroJack said:
Did the trick , looks like I'm going to be spending tomorrow finding stable clocks but i think in the end 24/7 clocks of 1200/1575 are brilliant , with good temps and low noise. I'm one of the fortunate ones

@nlel Us humans we always want more

Yup and I am happy with 1150/1500 because 1200 core crashes in Heaven and 3D Mark as does 1600 mem after an hour or so of BF3.

I have the core set to 1.137 and haven't touched the mem voltage yet.

YesImAfroJack · 12 Feb 2013 at 18:37

nlel1975 said:
Yup and I am happy with 1150/1500 because 1200 core crashes in Heaven and 3D Mark as does 1600 mem after an hour or so of BF3.

I have the core set to 1.137 and haven't touched the mem voltage yet.

the 50mhz difference is probably negligible at best anyway

what are your temps like btw ?