Is a 70% asic quality pretty good?
The higher your ASIC quality, the lower of a voltage your chip can get away with running. Running your chip at a lower voltage is not any more or less beneficial except in regards to heat, so The ASIC quality doesn't really change performance. Lower voltage sort of implies that you could get away with better overclocks, but there is no guarantee of that.
70-79% is the sort of average range you'll see for most cards, BUT the source of the ASIC score is questionable. I'm not sure how GPUZ calculates it, if at all or just reads a value burned into a chip on the card. Low ASIC cards have been known to OC well... So it's a really dubious metric.
Short answer to your question, yes I would say 71% is good-decent, long answer: I wouldn't pay any attention to it.
I know what ASic quality is. but since I got my gtx 980ti for 525. I was thinking that's pretty good
To expand on this:
It also indicates that the chip is also more electrically efficient. You are not likely to see the card breaking TDP in stress situations.
It basically means the chip leaks less, which means it has higher thermal/voltage headroom before it or the VRM is strained. This can lead to higher overclocking under adverse conditions, in this case stock air cooling.
I'd say 60% - 79% is more accurate, with outliers from select vendors being more stringent. GPU-Z gets the ASIC quality reading from TSMC's baked in S/N. When the wafer is printed and moves to cutting, each ASIC is serialized. The number contains the information of fabrication plant, wafer ID, wafer position, production date and core configuration.
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