I get only ~560Kh/s for 280x Radeon video card. (10000 DOGE Bounty)

[romanticon]

raise core clock is what you need now to push it further

What exactly do you mean ?
What parameter is a core clock ?

[backtrackit]

raise core clock is what you need now to push it further

What exactly do you mean ?
What parameter is a core clock ?

overclock the gpu http://www.overclock.net/t/517861/how-to-overclocking-ati-cards-in-linux. if you look here https://litecoin.info/Mining_hardware_comparison your getting around whats expected at gpu engine speed 1000. If runs unstabe you may need to up the voltage if temps allow.

[romanticon]

overclock the gpu http://www.overclock.net/t/517861/how-to-overclocking-ati-cards-in-linux. if you look here https://litecoin.info/Mining_hardware_comparison your getting around whats expected at gpu engine speed 1000. If runs unstabe you may need to up the voltage if temps allow.

Sounds fantastic , what settings you
made  here:
     aticonfig --odsc=???,???

[fynrd1]

You need to flash your bios first. Then you'll be able to hit the 650k at least, with common settings.

[backtrackit]

overclock the gpu http://www.overclock.net/t/517861/how-to-overclocking-ati-cards-in-linux. if you look here https://litecoin.info/Mining_hardware_comparison your getting around whats expected at gpu engine speed 1000. If runs unstabe you may need to up the voltage if temps allow.

Sounds fantastic , what settings you
made  here:
     aticonfig --odsc=???,???

After looking into it more it looks like you would have to flash your gpu with a modified bios. I use winblows and normally use afterburner to overclock. That been said have flashed the odd card and is fairly straight forward to do.