whats your config for the 270 (non x). I cant seem to get my gigabyte 270s stable with any of the settings in this thread.
My settings are currently conservative because of the temperatures (ASUS R9 270. many reports of high temps with this card), but if I recall, the ones that gave me the highest numbers were:
core/mem - 1100/1250
vddc - stock
powertune - 0
lookup-gap - 2
gpu-threads - 1
intensity - 19
thread-concurrency - 12288 (I'm not convinced this is the best TC, but so far it's ok. I have still been fighting some HW errors but they are very infrequent)
worksize - 256