cheap gpus for xmr? the complete AMD GCN 1.0/2.0 bouquet:
7850, 7870, 7870XT, 7950, 7970, 7990
R7 265, R9 270, R9 270X, R9 280, R9 280X, R9 285 (gcn 3 but doesn't matter), R9 290, R9 290X
R7 370X, R9 380, R9 390, R9 390X
they do all over 420 Sol/s, the bigger ones even up to 900.
Great! I assume that all these have only 2 Gb?? I don´t know alot about the monero DAG size or the expected increases either. I could google it, but I like hearing from people on this forum.
Only Ethhash algorithm coins (ETC, ETH, and such) use a DAG file.
It is NOT AN ISSUE on anything else in cryptocoin mining.
R9 290 are 4GB on the reference models, I think the only options were 4GB and perhaps 8GB on some aftermarket versions.
Same on the R9 390.
They're also still some of the highest hashrate ETH mining cards, though efficiency is not good due to their high power draw (even with an undervolt modded BIOS).
7850 and 7870 do NOT do 300 sols/s or even 200. More like 150 on the 7870 and a bit less on the 7850.
R9 280x as I recall was around 280-300 sol ballpark - DEFINITELY not 400 or more.
Never tested my R9 290 cards on ZEC, but they should be quite a bit faster than the R9 280x - 400 sol ballpark would seem likely on those - but they make more on ETH mining than on ZEC mining.
I doubt ANY of them can do 900 sol/s except PERHAPS the 7990 with it's DUAL GPUS ON ONE CARD (and those being the same GPU as on the 7970 or R9 290 or R9 390) - and that would be for the card, NOT for each GPU and do note that it counts as *2 GPUs* against driver limits.
