1gb ram? Good luck... i really wanted to mine on my old Gtx 260... i now use that as a throw toy for the dog... he loves it
ETH and it's spinoffs like ETC are the ONLY Cryptocoins that have issues with "not enough RAM" on a 1GB card, due to how their algorithm is set up.
The real issue is that a lot of mining software doesn't support pre-GCN cards well if at all on coins that ARE currently viable to GPU mine, and the cards themselves eat more power for their compute ability compared to anything GCN and a LOT more compared to any current cards.
