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Just saw two more 5970's go for 400+ on Ebay.
It is getting tempting to sell a few of mine and trade up to 7970. Same hashing with less power = win.
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Updated OP to reflect sold 5830 and an additional 5850 for sale.
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I just received my card today (5830) and I'll be able to give it a test run later tonight, need to let it warm up a bit since it was chillin' outside and it's like -5.
Thanks EP, though I found the tape-to-box ratio very very high however that might have just been because of customs. Also you should totally vacuum your computer area lol.
Yeah, some of the taping jobs were pretty tacky... I chose to err on the side of caution to make sure it didn't fall out somehow. and yes, I am ashamed to admit that I didn't get a chance to blow out all of the cards before I shipped out, but just know that the clocks that I mentioned in the first post originally were with the dusty cards, so maybe if you de-dust them, you'll get even better performance. Thanks again. Good luck hashing! -EP Lol. where is Lords name were you mining?? In a dusty garage? Must just be Bakersfield..... |
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UPDATE ON JAN 24th We are making initial preparations for public listing on GLBSE! Our ticker symbol is BTCMC (Bitcorp Mining Company). Interested parties are welcome to purchase shares through GLBSE. Current shareholders will continue to recieve dividends as promised, and need to contact us to transfer shares to GLBSE if desired.
At this point, we are simply playing around with the beta version of GLBSE 2.0.....but plan on going live soon.
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Will Kepler continue Nvdia's stellar record of absolute dogshit for mining? If so, I think the resale value of the 7970 will stay high due to the mining demand. If Kepler kills it in both gaming and mining, then I could see resale value of the 7970 plummeting.
I have no idea if it will be any good for mining; but mining is like 0.1% of the highend GPU market, if that, its not setting prices. If list prices of 7970s plummet to $299, its not gonna help your resale value for a used one  . And $299 in a few months is pretty much a given, at least if you believe semiaccurate, a site notorious for bashing nvidia and cheer leading ati, yet they claim Kepler will run circles around the 79x0 cards and launch at $299. I think your analysis is flawed. If mining is not helping to dictate prices on high end cards, why is the price of used 5970's rising? |
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I dont think resale value of the 7970s will be much better. It is of course now, but expect those prices to implode once nvidia's Kepler hits the market in a few months. Better hang on to those 5970s IMO, far better MH/$ now and comparable (if not superior) MH/W depending how much you can undervolt either card.
Will Kepler continue Nvdia's stellar record of absolute dogshit for mining? If so, I think the resale value of the 7970 will stay high due to the mining demand. If Kepler kills it in both gaming and mining, then I could see resale value of the 7970 plummeting. |
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Aww I sent you a message yesterday about that 5830, was just waiting for that picture before I sent you funds  Sorry bout that....I would rather just sell it than upload another picture! |
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if the 5830 is available and shipping to usa i will take it
Yes, and sold. send 19 BTC to 18wLgRN7ZQZkquPfDb2y2p2hffPvX2yVmM PM me your shipping address as well. |
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The prices for used 5970's are once again heading higher rapidly on Ebay. The latest auctions I have seen closed above $400!
This gives me pause, as all of my 5970's were purchased at approximately $300 or less when miners were committing mass suicide in the streets. I could sell them for a quick 35% profit and replace them with 7970's, which would probably have longer useful lives and retain much better resale value.
thoughts?
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Can you please tell me how much do you estimate this setup cost you?
It's quite magnificient and quite a job!
Cost for you to build this system today: 16 X6500s at $550 each: $8800 Power supply (I used this one): $65 4 120 mm fans at $15 each: $60 Various Molex splitters and adapters: $20 16 USB cables: $50 USB hubs: $30 Total: $9025 / 4.2 GH/s or 2.12 $/MH A lot of those extra things you probably have sitting around already, or you could find better deals. The next price break above that is at 25 units. You could still run that many boards off of a single supply (400W) so your overhead cost would only be slightly higher. 25 X6500s at $535 each: $13,375 Power supply: $65 Fans: $90 Various Molex splitters and adapters: $30 25 USB cables: $75 USB hubs: $40 Total: $13,675 / 6.6 GH/s or 2.05 $/MH You will also need a host computer to run the system, but you most likely already have that and the performance requirements on that computer are quite low. Note that those $/MH are based on 266 MH/s for each X6500. I have every reason to believe that we will reach higher hashrates with improvements to the software and firmware in the future. This is fascinating to see someone actually do an FPGA farm in scale. I could not stomach the upfront capital cost needed to replicate my 18,000 MH/s. My my rough math, it would cost $35,000+ to get to that speed! Now clearly cost savings would start to offset the capital cost, but that is a loooong payback. Also, the salvage value is much higher on GPU's, which has a huge impact on the NPV calculation. I have invested $12,500 into my operation, and get 18,000 MH/s. $.69/MH. Pretty damn good! |
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all on the same rig
PhenomII @ 1GHz, PSU is the same SF 80+ gold as used before
5970, linux amd64, cat 11.12, sdk2.5
idle @ 0.95V/157/1000, 182W
idle @ 0.95V/157/300, 152W
idle @ 0.95V/157/150, 149W
cgminer @ 1.05V/820/300, 377W, 761Mh/s
cgminer @ 1.05V/600/150, 308W, 542Mh/s
cgminer @ 1.00V/600/150, 291W, 542Mh/s
cgminer @ 0.95V/600/150, 273W, 542Mh/s
7970, linux amd64, cat 11.12, sdk2.6
idle @ 0.85V/300/150, 115W
idle @ 1.175V/300/150, 132W
idle @ 1.175V/1150/1070, 168W
phoenix @ 1.175V/1150/1070, 363W, 676Mh/s
phoenix @ 1.175V/1150/1375, 370W, 676Mh/s
phoenix @ 0.85V/300/200, 154W, 178Mh/s
7970, windows 7, cat 11.12 7970 edition, sdk 2.6
screen off for a bit,102W
idle @ 0.85V/300/150, 114W
idle @ 1.175V/925/150, 142W
idle @ 1.0V/925/150, 128W
phoenix @ 1.0V/925/150, 235W, 535Mh/s
phoenix @ 0.95V/925/150, 222W, 535Mh/s
phoenix @ 0.92V/925/150, 217W, 535Mh/s
phoenix @ 1.175V/1150/150, 328W, 659Mh/s
phoenix @ 1.175V/1150/300, 339W, 666Mh/s
phoenix @ 1.175V/1150/1070, 368W, 674Mh/s
2MB PCI S3 VGA card, linux
idle 101W
so let's run some numbers, using 0.95V as undervolt for 7970...
whole system:
max OC @ stock V: 5970 2.02Mh/J, 7970 2.01
undervolted: 5970 1.99Mh/J, 7970 2.41
assuming system is 100W (well, more or less...)
max OC @ stock V: 5970 2.75Mh/J, 7970 2.89
undervolted: 5970 3.13Mh/J, 7970 4.39
bullshit calc (aka simple load - idle)
max OC @ stock V: 5970 3.38Mh/J, 7970 3.07
undervolted: 5970 4.37Mh/J, 7970 4.95
So, basically it is safe to say the 7970 is solidly more efficient, but not a quantum leap. Fair? |
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just going to throw some 7970 results in here to make the thread more inline with title.
clock: 1104/1028
volt: 1068 4x7970
watts: 1025 @plug
Mhash: 2630
psu 2x seasonic 650
Mobo: crosshair V
cpu: phenom x4
mem: 4g 1600
stock clocks on mobo and mem
Is this with 3x 7970? or 4x? Lol. My bad. |
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just going to throw some 7970 results in here to make the thread more inline with title.
clock: 1104/1028
volt: 1068 4x7970
watts: 1025 @plug
Mhash: 2630
psu 2x seasonic 650
Mobo: crosshair V
cpu: phenom x4
mem: 4g 1600
stock clocks on mobo and mem
Is this with 3x 7970? or 4x? |
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I already posted a comparison in another thread, but FWIW here it is again: Single 7970: Roadhog2k5's resultsSystem Idle: 270 watts System Mining: 388 watts Mining: 925/150mhz, 865mv, 118 watts 550 MH/s ( 4.66 MH/watt for the card) Single 5970: My results System Idle: 138 watts System Mining: 235 watts Card Mining: 605/166mhz, 900mv, 97 watts 550 MH/s ( 5.67 MH/watt for the card) Of course this is two different systems so the baseline System Idle numbers are different. Theoretically it shouldn't really matter what the idle baseline numbers are, but it would be nice to see a true back-to-back comparison on the same mining box. What are your settings on that 5970? How is the world is a dual GPU card only pulling 97 watts? That seems insane...... Crazy undervolt. Kinda interesting, the cores are down at 0.9v What would one expect a 5970 to draw at stock settings? I only ask because I have 12 mining away currently. |
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I already posted a comparison in another thread, but FWIW here it is again: Single 7970: Roadhog2k5's resultsSystem Idle: 270 watts System Mining: 388 watts Mining: 925/150mhz, 865mv, 118 watts 550 MH/s ( 4.66 MH/watt for the card) Single 5970: My results System Idle: 138 watts System Mining: 235 watts Card Mining: 605/166mhz, 900mv, 97 watts 550 MH/s ( 5.67 MH/watt for the card) Of course this is two different systems so the baseline System Idle numbers are different. Theoretically it shouldn't really matter what the idle baseline numbers are, but it would be nice to see a true back-to-back comparison on the same mining box. What are your settings on that 5970? How is the world is a dual GPU card only pulling 97 watts? That seems insane...... |
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So now that the 7970's have been mining for a couple weeks, what is the rough consensus on efficiency?
It looks to me that a 7970 gets approximately the same hash rate as a 5970, but with half the GPU's. Intuitively, this must mean a major increase in efficiency.
Anyone care to put some numbers with the argument? I have seen many different figures.....just hoping someone who has followed it more closely can lay out the specifics.
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The biggest pain is those thermal pads and paste. They always get screwed up when opening the cards. It's good to replace that stuff though. I always do that when I buy used cards. One of my cards looked like someone used toothpaste or something. Never seen pure white thermal paste before.
Interestingly enough......the thermal paste on this one looked really good. Either it was not used much by the previous owner, or he refurbished it. |
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Updated the OP, added a 5830 to the list.
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How much will shipping be to the Netherlands?
Will not ship international, sorry! |
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