Oh yea. On Windows you can set the V to whatever you like. But on BAMT or Linux you have to flash a BIOS to the cards to get them to run at 1.09 V.
But the W difference between 1.09V and the stock 1.25V is a lot.
Topic: Which GPU (7970) really does 720+ out of the box? - page 2. (Read 3520 times)
I have 3 rigs all with Sapphire 7950's. Specifically the 20G model.
I get 640-650 KH/s mining LTCs.
I use these settings.
Core 1100
Mem 1500
V 1.09
Powertune 20
Intensity 20
TC 19000
Threads 1
If you do the math the 7950's are a lot better.
I get 640-650 KH/s mining LTCs.
I use these settings.
Core 1100
Mem 1500
V 1.09
Powertune 20
Intensity 20
TC 19000
Threads 1
If you do the math the 7950's are a lot better.
I mine LTC on both sapphire and gigabyte (WF3) cards, and the gigabyte ones are infinitely better.
I get about 720khs per card (vs about 660 on the sapphires) with the following settings:
Core: 1045
Mem: 1500
Concurrency: 8192
Vectors: 1
GPU Threads: 2
Worksize: 256
Intensity: 13
I wish I had only bought the WF3 cards..
I get about 720khs per card (vs about 660 on the sapphires) with the following settings:
Core: 1045
Mem: 1500
Concurrency: 8192
Vectors: 1
GPU Threads: 2
Worksize: 256
Intensity: 13
I wish I had only bought the WF3 cards..
well yeah.. it is for LTC mining... I forgot to mention that...
anyway... I do not see any WF3 on 7970.. only on 7950?
anyway... I do not see any WF3 on 7970.. only on 7950?
Ya if you're going to be switching to LTC, go with the 7950.
Sorry, WF3 = Windforce 3, and is the triple fan heatsink design Gigabyte uses on their high end cards.
well yeah.. it is for LTC mining... I forgot to mention that...
anyway... I do not see any WF3 on 7970.. only on 7950?
anyway... I do not see any WF3 on 7970.. only on 7950?
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.
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.
Hello,
I have been planning on getting a new rig with 5 * 7970 on it...
I have multiple GPU's in my cart...
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125439
vs
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125414
and I also saw a few Sapphire 7970....
but based on experience... can somebody chime in? which GPU should I get?
I got 6 MSI R7950 OC edition and even though people saying they are good... well based on my experience I am only getting 550+khs on each...
so I am thinking of moving to Gigabyte or Sapphire.. but there are too many 7970 from each brand...
any help will be appreciated... I did do a "one" week search about this... and still not convince which 7970 to get...
Thanks
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