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First, thank you for all your answers.
Currently, I'm mining the equihash algorithm on Nicehash. I know it's not profitable for now and even daggerhashimoto isn't profitable for me.
But the problem is that i mined for 0.0005 some months ago when it was profitable and i need 0.0005 to be payed
. So I would like to earnthose 0.0005 bitcoin as soon as possible and with the best possible efficiency.
Yes my card is a GEFORCE GTX970, I know it's an old card, that's why i was using it for mining. I'm not doing it to be the most profitable but to learn things.
The real problem comes from Nicehash. As I said, on all the algorithm except Dagger, my card is doing what it should do (benchmark=real hasrate). But with Ethash I benchmark myself through
Nicehash at 19 MH/s and when it turned on, 3 MH/s
. Moreover my card seems to do not suffer, it is not doing much calcul beaucse the heat doesn't go up.Whereas 3 months ago maybe when I mined dagger I was at 19 MH/s as the benchmark said.
Can it come from Nicehash ? Or it is my card ? I read some months ago that because of the development of ethash blockchain, the graphic card RAM will increase (to load the blockchain) and that it will cross the 4 GB level. Did it already happened ?
This afternoon, i'll mine with claymore to see if my hashrate is of 3 or 19 on ethash.
Thank you again.
Have a good day.
Alexandre
Indeed when I benchmark I get 19 MH/s for a 970 without overclock or something, just basically. When the mining begin I am at 3 MH/s 
