v3.3 is available:
- Improved mining speed up to 5%, depends on card, I get 650 h/s on stock 290x.
- Improved stability.
It seems I fixed issue with bad performance on 280x, though not sure, on my 280x it works fine.
What is the hash rate on your 280x?
450 h/s in v3.2, 460 h/s in v3.3. Stock clocks and bios, 280x powercolor, hynix memory, no riser. It seems I have to check this problem only remotely with logs, so it will take more time to find the reason.