Sapphire 570 4GB Mini Elpida - strap 1750 - 1110/2040/-96mvgpu/30+target = 26,3-26,4 @ 164w on the wall = 169 USD newegg very nice
Your doing something wrong, I have this card at 29.5 MH @ 130 watts. Definitely the best bang for buck for the current 500 series line.
Yes, something wrong.
For cards that do not work as well as others, try the strap again. A few people have already said that Nitro+ 580 has much better results, I probably did not do a good strap.
Btw for all: on the wall = value from the meter in the socket, which contains 10% power loss, motherboard + cpu + disk consumption, little loss of cable resistance.
750w EVGA GQ - efficiency
https://www.pcper.com/image/view/65645?return=node%2F64650
Table of efficiency
https://www.pcper.com/files/imagecache/article_max_width/review/2016-01-16/28-80Plus-Chart.gif
160w on the wall = cca 17,6w psu loss = 142,4 - 119w per card = 23,4 system consum
However, my findings. Afterburner absolutely does not respond to the Sapphire voltage setting. That's why I have so bad consumption results. Afterburner writes about 115-119w on the card.
But for example, the MSI 570 Armor 4g responds perfectly
, 95w / 27-28MHs. 130-135w on the wall. I need to fine-tune the afterburn settings or try the Sapphire trixx.