#Gpu z asic series
I also believe that ASIC does not apply to such an extent (if at all) for NVidia 6 series cards, mainly because all of my 6 series cards have indicated 100%. If anyone can show me a 60-70% ASIC that can match either of my 84/85% 7850/7870's I will eat my words. It cannot be coincidence that all of my 7800 GPU's scale according to ASIC. I consider myself in a good position to judge because I have tested multiple GPU's with multiple ASIC values within exactly the same system. A 7850 GPU with 1.218v default volts can only be overvolted by a small percentage, but one with 1.050v has a much wider margin. This would also indicate that higher ASIC's will have more headroom for overclocking due to cooler running temperatures and more voltage headroom. This indicates that lower value ASIC's require more voltage to run at stock speeds. One thing that is CERTAIN is that AMD determines the default voltage supplied to the GPU by ASIC quality. If you have poor components on the PCB, poor power regs, perhaps a poor mobo or PSU, this may restrict a even a great GPU, but I believe higher ASIC "improves the chances" of obtaining a high overclock. Now, ASIC is not the only determining factor. The remaning 3x 7850's I have owned (I build systems for other people), overclocked somewhere between 1150 to 1250MHz and had ASIC's between low 70's to high 70's. It had an ASIC of 64% an struggled to run stable at 1050MHz, no matter the voltage. The worst card I owned was an MSI TF3 7850. Both of these cards indicated 84-85% ASIC. One was a 7850 than reached 1360MHz stable (at 1.3v with an Accelero TTII cooler) and the other is my current 7870 than does 1325MHz stable (1.3v stock Windforce cooler). I have owned two cards which overclock with complete stability above 1300MHz. Every single one of my 7800 series cards has overclocked according to ASIC quality.
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