Re: PhoenixMiner 5.5c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
hey guys, thx for not helping me with my problem the last time. 
at least feel me in as to why my 4gb graphic cards get so much lower hashrate compared to about 3-2 weeks a go?
at least feel me in as to why my 4gb graphic cards get so much lower hashrate compared to about 3-2 weeks a go?
In the first post of this thread there is information about the DAG size and the decrease of hash rate for 4GB cards. Everyone is probably surprised that you're still trying to use 4GB cards. Although you may not want to hear it but the resolution to your problem is to upgrade at a card with a minimum of 6GB. As the DAG file increases each epoch, the hash rate is going to continue to decline.
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After the epoch 374 the hashrate will drop dramatically (to just a few MH/s) because the DAG no longer fits in the card's VRAM and part of it is stored in the system memory.