@pcste crypto-mining info - mining with AMD HD7970's and R9 280x's is now profitable again with Equihash algo.

Get your old 280x's and 7970's back online mining Zclassic. specs for GPU's in post.

For a while 280x's and 7970's lost their profitability when their hashrate almost halved for mining ethereum.
This was because of the increased memory requirement as the ethereum dag epoch got bigger.
There are now new coins using the same algorithm (Ethash) but the dag files are lower so now a 280x will have the same hashrate on these coins that it had when it was first mining ethereum. i.e. 22 Mh/s instead of the 11 Mh/s you now get mining ethereum.

Also you can now get about the same return mining Zclassic with a 280x as you would mining ethereum with rx 470.

currently you can mine $3.27 Zclassic per day with a 280x (before electric cost)

R9 280x/7970 mining specs

Hashrates :

Equihash algorithm : 290h/s

profitable Equihash coins :
Zclassic $3.27 per day
Zencash $2.68 per day
Hush $2.50 per day
Zcash $2.23 per day

Ethash algorithm : 11Mh/s ethereum, 22Mh/s others

profitable Equihash coins :
Musicoin $2.76 per day
Ellaism $2.51 per day
Expanse $2.42 per day

Mining with the Equihash uses less electricity and gpu intensity so you can mine on a pc used for other things.
As well as my rig i have a 280x in my desktop pc which i can run constantly on Equihash while still browsing and doing daily tasks.

mining with the Ethash algo uses slightly more electric and uses more intensity so if you are mining on a pc that is used for other things it will probably crash unless you lower your card speed or intensity. so best used on mining rigs

Mining software for Zclassic :
claymores zcash miner
https://bitcointalk.org/index.php?topic=1670733.0

Zclassic mining pool :
https://minez.zone/getting_started

Zclassic exchange you can mine to :
https://www.coinexchange.io/

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