Hi, I have a question: I have a rig with some 4Gb and 8Gb amd RX 5xx cards.
When the size of the DAG file exceeds 4GB (next December), will it be necessary to replace the 4GB cards with 8GB models or since I have 8Gb cards will everything work?
AT BEST THE HASH RATE WILL BE LESS--
That is why I have not even experimented with it. There are reports of rigs with at least 1 8GB "lead" card able to mine with 4GB cards. It is said to work, but not well. The reports speculate that the 4GB cards process the DAG with the data stored in "virtual memory".
You will need to try it yourself. My Linux rigs still work. They have no swap files. RX 4XX and 5XX cards earn only pennies a day currently. If BTC rises to $20K, and ETH tracks along with BTC, it may be worth trying. --scryptr