Silk Road forums
Market => Product requests => Topic started by: wakwside917 on March 08, 2012, 07:54 pm
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Looking for higher end AMD graphics cards for bitcoin mining. I dont care where they come from as long as they are in good working order and I can get a good deal on them. Tell me what ya got.
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I'm sorry to tell you, but you have missed the boat by about 6 months. In most countries you wont earn enough bitcoins to cover the rise in your power bill.
On a personal note, i stopped mining six months ago, my video card still glitches from the damaged the overclock did. :(
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I don't care about power cost. I got 10 PCs at work I can put cards into. So the only cost to me would be the cards themselves.
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On a personal note, i stopped mining six months ago, my video card still glitches from the damaged the overclock did. :(
I did the exact same thing, it ruined my multi-monitor setup. When running both screens the artifacts are everywhere. The card was from XFX (Double-Lifetime Warranty!) so I'll be getting a new one soon, I hope you have the same luck!
@wakwside917
I believe you still missed the boat. It gets harder and harder to mine for coins as time goes on. You would end up with something, but not much. And depending on the amount of cash you are willing to dish out for the high-end cards needed for effective mining, it might be a while until you even break even. And that is without accounting for increasing difficulty. If your work doesn't notice the power increase or the slowed speed of the PCs then you could see some long-term gains after paying off the cards. You may have done the research already, but thought I'd share my experiences.
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If you have the capacity to run machines, and assuming the mobo's in your work PCs likely have 2 PCI-E slots (you'll need PCI-E extender's likely) you can easily turn a profit off of a 20 card bitcoin mining setup if you're not paying for power.
Don't buy high end cards, they'll run you $400+ each and get you 400-450MHash/s each, whereas 6870s for eg. (which run for $150ish) will get you 350MHash/s each. One can see the logic in numbers. Only buy reference cards. A large proportion of the investment is in buying the machine's themselves (that's why we be rolling semprons up in this bitch), but if you've already got 10 at work you're far ahead of the game already.
You can find cards on hardware forums, hardforum.com, forums.anandtech.com, etc. and the best place surprisingly is amazon, there are used 6870s for $100ish up there all the time.
If you have the capital to invest in a 20 card mining rig and don't have to pay for power you will see a return ... it will just be several month's before you do (thereafter it being just pure profit). If you're capable of pushing 5+ GHash/s I wouldn't pool mine (eg. deepbit) either.
The only problem you (and anyone whose mined in the last year) might have is if someone actually construct's a tangible ASIC machine (instead of just talking about it). One dedicated ASIC would cost like $20, pull less then 20W power and they can be chained by the hundreds. In other words, the day someone comes out with such a machine they'll fuck with the difficulty (we're talking machines capable of pulling 500GHash/s per machine) and all video card mining will be extinct. People have been flapping their gums about ASICs for a while now, and while it's totally feasible and possible to make an ASIC to run SHA-256 processing threads nobodies really come up with shit ... YET.