I've been experiencing artifacts or graphical corruption with the above mentioned card, it doesn't always happen and it doesn't happen specifically in an area but the frequency is high enough to be an annoyance.

I have friends who owns the exact same card and have also experienced similar issues, we're running the card at its stock clock speeds (1070/6400) so I don't think its an isolated issue.

I have flashed the VBIOS to the latest available and have tried using Catalyst 13.11/12, I've also tried increasing Power Control to +20% but the issue still persists

System Specs:

CPU - Intel i5 2500K @ 4.4Ghz
Motherboard - Gigabyte Z68XP-UD3P (REV 1.0) BIOS F7
Memory - Corsair Vengeance DDR3 1600 8GB
HDD - Plextor M5Pro 256GB
PSU - Seasonic M12II 750W
Graphics Card - ASUS DirectCU II TOP R9 280X 3GB DDR5 w/ latest VBIOS
OS - Windows 8.1 64-bit

I was previously using SAPPHIRE Vapor-X R7950HD 3GB DDR5 and I have not experienced any graphical issues

Anyone else using the same card or R9 280X cards? would like to know if you are also experiencing the same issue, if it ain't too much trouble, listing down your system specs might be useful in identifying the cause.