Re: AMD Tahiti GPUs (Radeon 7950 / 7970 / 280X / 7990 ) Owners Appreciation Thread
Anyone mining recently with 280x? On cryptonight I´m only getting 400 h/s on xmrig/srb and xmr stak just crashes the computer. And on beam I´ve been getting just 2-3 sols. Any sort of overclocking only seems to lower hashrate and eventually crash. Maybe older miners work better? I Remember getting like 550 h/s on cryptonight years ago. Maybe some older driver is better to use, maybe something can be done with this new mem tweak stuff? Any tips appreciated apart from Bios mod or telling me it is not efficient GPU to use 
Sell those ancient Tahiti gpu's and buy some used Hawaii gpu's instead. Or if you have the cash, go buy some used rx580's and mine cryptonight variants with those great cards. Will use much less electricity too.
I am very surprised to see this thread being resurrected. Basically i've sold all my 280X that didn't have any fan issues. Most of the people that bought them bought it for Crossfire gaming, video rendering, or some hobby mining. I think I got an average of $50 per GPU. Hence its worth the time to package them up and sell them on Craigslist.
I wouldn't even buy any Hawaii's GPUs because in my opinion they are overpriced and they are almost useless for mining since they got that DAG thrashing bug and hash ETH at like 15MH/s and they also use tons of power, usually at least 200 Watts worth.
There are tons of second hand RX 570 4GB that you should buy instead because mining is still not as profitable as it once was and everybody wants to get rid of them.