I am mining on Radeon HD 7850 2G
I increased GPU clock speed to max 1050 available in AMD overdrive. and then I started to increase memory clock speed. Mining performance is dropping when memory clock speed is higher then 1250.
1300 - 327
1290 - 320
1280 - 313
1270 - 310
1260 - 307
1255 - 341
1250 - 361
1245 - 361
1240 - 360
Does clock speeds must be multiple?
Is there some formula that shows the best values for mining?