My v4 info:
AMD Fury - 100 H/s
280X - 70 H/s
280X - 85 H/s hynix > bios mod 7970 hynix low power use ! AMD Fury - 100 H/s
280X - 70 H/s
The 280 with 7970 bios?
Yeah sometimes you can do that since its the exact same ASIC CHIP. Just rebranded. In my thread many flashed their 280x with 7970 bios for Gigabyte.