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Title: Best hash per watt (J/hash) Post by: Grim on May 23, 2013, 05:27:03 PM I wanna know your guys opinion about best hash per watt for BTC and/or LTC.
As far as i know: HD 7790 HD 7850 HD 7950 Any insights? Title: Re: Best hash per watt (J/hash) Post by: crazyates on May 23, 2013, 07:20:36 PM I have a Jalapeno sitting next to me doing 5.5GH/s for 45watts. ;D
That said, get any voltage unlocked 7950 or 7970. They can reach some impressive numbers for a GPU. However, you want to look at profitability, not most energy efficient. Here's what I mean: Click for larger image: http://s24.postimg.org/5oxofpefl/Capture2.jpg (http://postimg.org/image/5oxofpefl/) I can undervolt to increase my MHs/watt to 2-2.5x stock, but I actually lose profitability. Title: Re: Best hash per watt (J/hash) Post by: miningdude on May 23, 2013, 08:48:42 PM @crazyates, rather than clamor for your order #, I'll just say Congrats!
And yes, I would agree the 7950 and 7970 are the best cards. In my mining experience (http://www.coinminingrigs.com/) the 7950 runs a bit cooler than the 7970 so you can push it further. There are a few FPGA's being re-sold around the forum that would have a pretty good hash to watt ratio. I wouldn't pay more than $1 per Megahash though at this point (for example $860 for an 860Mh/s FPGA). Title: Re: Best hash per watt (J/hash) Post by: Grim on May 23, 2013, 09:13:48 PM very nice chart, thank you
still would like to know about 7790's |
