@Felixxx Go to bios mod town. Hm... I haven't heard of 470's being more efficient (hash per watt) than 480's. You should also consider going to bios mod town.
Here's a forum post from Boysie about a low power bios
https://forum.ethereum.org/discussion/9400/boysies-rx480-ref-bios-29mh-low-pwr-eth-or-dual-mining
Note, this is for ETH (again why are NOT mining it lol.)
Thanks for the link.
I don't own a 470 or a 480 (yet).
Out of the box my R9 280x seems to have a worse hash/Watt ratio* than those cards.
*equihash
However, after my voltmod, it looks like the r9 can compete with those cards now.
I'm considering the rx series because I will have a better resale value.
Until my risers arrive ( sometime this month I hope ) I hope either the rx 5xx or the 4xx will drop in price.
A friend and I were considering getting a whole ton of 1050ti's as they are low power for a rig but I'm not remotely certain of their efficiency.
Too bad you are not in the US - I've got 2 480's I'm trying to get rid of and I would have passed them along to you with a extra discount as I appreciate you posting here.
I would have bought them :D
It looks like I'll be waiting for a cheap second hand offer, locally.
With that said for mining you wouldn't want the ones I have that much anywho as one of the reasons why I'm selling them is as I am having some trouble getting them any higher than 28.x/mhs.
As mentioned in my post: ETH will switch to POS.
I have no idea when that will happen, but I assume that equihash is a better longterm bet.
More the reason to mine it NOW (though you shouldn't build a rig necessarily dedicated for ETH - if you don't have the equipment already - unless are considering banking on ETC to be a good bet). Though from my perspective, once ETH gets too hard to mind (via diff. bomb) or goes PoS, I swich to ETC (unless there is something better for me to mine with my hardware).