I have that Gigabyte 7970 WF3 GHz Edition, stock OC of 1100MHz, and I can OC to 1200MHz and get 722MHs with no problems. I don't have a high ASIC quality, either. I have one of the earlier ones, that's voltage unlocked, but IDK if the newer ones are unlocked. It doesn't do that great for LTC, tho, and I can barely get 600KH/s on a good day.
If you're ever planning on switching to LTC at any point, get that Gigabyte 7950. It's one of the best LTC cards there are, and uses the same cooler as the 7970, so it stays nice and cool.
I have the same card. Problem is it gets really hot. The 7970 WF3 Ghz Editiotn should not be in a case when overclocked. But you can amp it even more. Outside of the case it started crashing at around 1285 for me. Problem was that inside a case, it gets ridiculously hot even at lower temps.
You cannot undervolt it, which will ruin your day, if you want to save electricity costs. This baby needs to be run in the wild on maximum power to make sense.
Ya I'll agree with that. The fans do a great job at moving the heat away from the card, but in a case, it just recirculates the hot air like all hell (pun not intentional). I've found I get better temps by removing the side of my case, but then I don't filter dust as well, so I put it back on. If your case has any side slots for fans to blow on the GPUs, make sure you install the fans so they blow out, venting the hot air from the GPUs. I also found this dropped the temps by a deg C or two.
These cards really were meant to be in an open-air rig, overclocked to all hell. I couldn't get mine much past 1200 while still stable, but I have a somewhat low ASIC quality.
