R9 290 (Sapphire Tri-X)
2600 kH/s
Core: 1070
Memory: 1500
-I 20 -w 256 --lookup-gap 2 --thread-concurrency 24550 --gpu-powertune 20
6970 (Gigabyte Windforce)
1630 kH/s
Core: 970
Memory: 1400
-I 20 -w 256 --lookup-gap 2 --thread-concurrency 8192 --gpu-powertune 20
i7 2600K CPU, Stock 3.4 GHz
380 kH/s
I have two of each of the GPUS. Sadly... all around my 8.8 MH/s gets me only 10 DRK/day in this new difficulty and I wasn't around in the early, early days. Profitability's crap, but I'm too lazy to mine and dump something else and I like the temperatures.