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Really amazing work! Got my 580 4G back to 28 Mhs.

How will this behave over time, how much hashrate is lost with each DAG size increase?

would like to know too.. how long until the dag size increases again until it won't work with 4GB card again?

No one knows. It all depends on Lollie for his/her magic lol.

The 4GB card on Riser is still losing hashrate every dag size increase. Card on x16 is also losing hashrate but I feel like it's doing slower than the one on riser.

Dag 393 = 27mh/s
Dag 400 = 21-22mh/s
Dag 405 = 14mh/s
Dag 415 = 5-6mh/s

I expect that by 405-415 most rigs will be off eth or at least the non long slot cards. Because regular zombie is already around the 405 dag slowdown...so a little longer...which is still awesome...but SOON.

I was thinking...
On ETC they made an implementation that "zip" the DAG file. So 4G are back to the game.. Is there a way that the miner do this steps:
1 - Download the original ETH DAG
2 - "ZIP" this DAG
3 - Run on "ziped" DAG the miner on 4g cards

I am not a developer, but i think my idea make sense

The algo was changed for ETC that solution will not work..