Quote from: epicjim on January 17, 2014, 11:03:03 PM

Quote from: cisahasa on January 16, 2014, 10:47:07 PM

Quote from: epicjim on January 16, 2014, 08:31:58 PM

Quote from: cisahasa on January 16, 2014, 03:40:54 AM

Sapphire Radeon R9 280X Dual-X been better than my gigabyte
saphire 750khs 1.025v much cooler than Gigabyte R9 280x Rev2
gigabyte cant get voltage below 1.07, hash only 735khs

and my sapphire finds somehow 25% more shares than GIgabyte

Is your Sapphire Dual X stable on that 1.025 voltage with 750kh? I doubt it is. If you flash Gigabyte R9 280x Rev 2 it can get below voltage 1.07 but its not stable. (or i havent find right settings to make it so)

gigabyte is flashed, it carshes while under 1.07v

sapphire is stable at 754khs 1.024V 1080/1500 weeks online with those settings,
if lover anything below 1.024 it crashes once or twice aday
it can go even to 0.950 but there is no sense, it crashes about after 30minutes
sapphires power usage is 30w less than gigabyte

and best thing, it finds allways more blocks than gigabyte

See I was kinda impressed with your results until your last sentence which jeopardized your entire post.
Finding blocks are direct relationship with your khash rate. And you said "Sapphire finds 25% more shares then Gigabyte". wtf? How is 750 kh is 25% more then 730kh? Are you fail at math?

You might get higher khash setting with some settings but your comments on trashing other r9 280x's are simply BS.

Finding blocks is in direct relationship with work utility, not hashrate. Plus, there is statistical variation. So it would be interesting over which timespan the one card had 25% more accepted shares than the other.