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Title: $25,000 Best Gpu for the job? Post by: siikfo on January 14, 2014, 01:37:44 AM hey guys i plan on investing $25,000 (more later) into some very nice scrypt based rigs..
my question is which gpu would be better to use.. the 280x,290,290x (or one im forgetting) i know the 290x gets the most kh/s but it may not be the best price per kh/s so im hoping for some expert opinions :) Thanks in advance, Title: Re: $25,000 Best Gpu for the job? Post by: Kenshin on January 14, 2014, 01:52:25 AM With that budget you can get a ASIC miner. Such as Cointerra or KNC miner.
Title: Re: $25,000 Best Gpu for the job? Post by: siikfo on January 14, 2014, 01:53:51 AM im not in the market for bitcoin... only scrypt based coins
Title: Re: $25,000 Best Gpu for the job? Post by: Kenshin on January 14, 2014, 01:55:42 AM Go for it, if you want to get 290x. But I am telling you, you can make more coins getting a ASIC mining equipment. Also electric is cheaper.
Title: Re: $25,000 Best Gpu for the job? Post by: MoneyMorpheus on January 14, 2014, 02:01:25 AM The best price k/hash wise is the 280x.
Friendly advice though, you will either need a very large room to host all the machines or a good air conditioner running 24/7. Not to mention you will need to draw a lot of electricity from the wall, you will need to calculate how many machines each outlet from the electrical installation can handle and to add new ones. Its not that hard though... Title: Re: $25,000 Best Gpu for the job? Post by: Icebjerg on January 14, 2014, 02:19:37 AM If I was to invest that kind of cash, I would strongly consider a scrypt asic.
https://alpha-t.net/shop/ Maybe they'll have a batch 2 Title: Re: $25,000 Best Gpu for the job? Post by: siikfo on January 14, 2014, 02:38:22 AM The best price k/hash wise is the 280x. Friendly advice though, you will either need a very large room to host all the machines or a good air conditioner running 24/7. Not to mention you will need to draw a lot of electricity from the wall, you will need to calculate how many machines each outlet from the electrical installation can handle and to add new ones. Its not that hard though... Yeah I have all that planned out. The first $25,000 would all be able to fit in my basement, when we expand we will move into a data center (my dad has many connections and can get it cheap) Title: Re: $25,000 Best Gpu for the job? Post by: crazyates on January 14, 2014, 03:14:47 AM The best price k/hash wise is the 280x. This. 280x all the way. My number crunching from our real-world rigs and also from other people's data says that the 280x are both the best Khs/USD, and also the best Khs/Watt (when undervolted). This includes the cost of added MB/CPU/RAM/PSUs for buying more rigs.Friendly advice though, you will either need a very large room to host all the machines or a good air conditioner running 24/7. Not to mention you will need to draw a lot of electricity from the wall, you will need to calculate how many machines each outlet from the electrical installation can handle and to add new ones. Its not that hard though... $25k could buy you somewhere around 10x $2500 rigs. $200 for MB/CPU/RAM $200 for 2x 750W PSUs $100 for 5 USB risers $2000 for 5 280x When undervolted, you're looking at ~3.5MH/s @ ~1300W. This puts you at 35Mh/s. I'd suggest running the PSUs off a 240V, which would save a tad on power. Adding in the power requirements for cooling, and you're looking at either 3x 30A or 2x 50A 220 circuits. This is assuming you already have the infrastructure in place. If your power distribution, cooling requirements, and physical housing are included in that budget, you're looking at closer to 8 rigs. Don't go for an ASIC. I doubt we'll get ASICs before 2015. We barely have any FPGAs in the hands of customers, and all the companies that are claiming ASICs are sketchy as all hell. Title: Re: $25,000 Best Gpu for the job? Post by: Dabs on January 14, 2014, 03:20:23 AM @crazyyates, even the 270 or 270x? Supposedly cheaper to run both Khs/USD and Khs/Watt, and maybe less noisy? I was about to do some number crunching, but if you've already done it, would appreciate what you came up with.
Title: Re: $25,000 Best Gpu for the job? Post by: crazyates on January 14, 2014, 03:27:35 AM @crazyyates, even the 270 or 270x? Supposedly cheaper to run both Khs/USD and Khs/Watt, and maybe less noisy? I was about to do some number crunching, but if you've already done it, would appreciate what you came up with. Yep, the 280x even beats out the 270x. The 270x does have a better Khs/USD ratio, but only for the actual card itself. Because it takes a ton more MB/PSUs/risers/etc to get to the same hashrate, those added costs actually make it a bit more expensive in the end.The same things happens when you move from 280x to 290s. You save costs on not buying as many actual rigs, but the cards themselves are too overpriced in this case, so it ends up being a loss. 280x are the 7950s of a year ago, and I don't think that's gonna change anytime soon. Title: Re: $25,000 Best Gpu for the job? Post by: kalus on January 14, 2014, 06:09:52 AM @crazyyates, even the 270 or 270x? Supposedly cheaper to run both Khs/USD and Khs/Watt, and maybe less noisy? I was about to do some number crunching, but if you've already done it, would appreciate what you came up with. Yep, the 280x even beats out the 270x. The 270x does have a better Khs/USD ratio, but only for the actual card itself. Because it takes a ton more MB/PSUs/risers/etc to get to the same hashrate, those added costs actually make it a bit more expensive in the end.for $50,000, you can buy one hundred sapphire 280x (free shipping!) http://www.ebay.com/itm/SAPPHIRE-TRI-X-R9-280X-3GB-GDDR5-OC-UEFI-for-Bitcoin-Litecoin-100PCS-500-pcs-/321278787326?pt=PCC_Video_TV_Cards&hash=item4acdb53efe Title: Re: $25,000 Best Gpu for the job? Post by: Mr.V on January 14, 2014, 06:32:43 AM where are you planning on buying these gpu's because all the stores pretty much made a 1/customer limit
Title: Re: $25,000 Best Gpu for the job? Post by: hakeriukasx on January 14, 2014, 07:24:58 AM R9 280X sapphire toxic is the beast in my experience
Title: Re: $25,000 Best Gpu for the job? Post by: firl21 on January 15, 2014, 07:48:00 AM If your looking to get rigs and parts let me know. I can get them cause i have a few accounts with major distributors. I get past the whole one per customer bs.
Title: Re: $25,000 Best Gpu for the job? Post by: ballot on January 17, 2014, 12:17:36 AM http://www.overclock.net/t/1443242/the-r9-290-290x-unlock-thread
they say u can upgrade ur 290 to 290x by bios update if possible it will be better than 280x khs/usd i think Title: Re: $25,000 Best Gpu for the job? Post by: Philopolymath on January 17, 2014, 02:15:25 AM ALL ARE WRONG
easy answer FROM REAL EXPERIENCE 7990 NO R9 290x NO Sapphire R9 270....NOT the x model (I have 3 and will buy MANY more) Sapphire R9 290x is $700 (with tax) I have 4 CDN $200 (local tax is 15% not included) so 2x R9 270's = $460 for 2x 468Kh/s = 460/968 AND MUCH less power use 1x R9 290x = $700 for 965kh/s = 700/965 diff pays MORE than cost for risers and extra boards PSU's etc... But why the hell should I give this EARNED advice to such a vulture who is ALREADY rich... Because I'm poor and stupid and desperate but KIND Title: Re: $25,000 Best Gpu for the job? Post by: cozk on January 17, 2014, 03:20:48 AM ALL ARE WRONG easy answer FROM REAL EXPERIENCE 7990 NO R9 290x NO Sapphire R9 270....NOT the x model (I have 3 and will buy MANY more) Sapphire R9 290x is $700 (with tax) I have 4 CDN $200 (local tax is 15% not included) so 2x R9 270's = $460 for 2x 468Kh/s = 460/968 AND MUCH less power use 1x R9 290x = $700 for 965kh/s = 700/965 diff pays MORE than cost for risers and extra boards PSU's etc... But why the hell should I give this EARNED advice to such a vulture who is ALREADY rich... Because I'm poor and stupid and desperate but KIND Bro you have some issues... up there... lol Title: Re: $25,000 Best Gpu for the job? Post by: MoneyMorpheus on January 17, 2014, 03:48:21 AM You should either check your numbers or have a look at the 280x...
r9 280x = 400$ and does 740 kh/s =1.85 k/usd vs 2.03 k/usd Lets say you use an mb that supports 5 cards. Thats a 360 usd difference in between the cards in your favour With 1 populated you will be doing 3700 kh/s and use ~1500w. You will need 8 270 cards to overcome that hashrate by a little bit, and you will be using ~1800w. You will also need to get an extra mb, ram, pen drive / hdd, processor and a set of risers. Wether its cheaper to build it or not depends on how much you spend on this items. You will also need some sort of frame to support the cards above the mb. mb 120 usd, cpu 50 usd, riser 10 usd (you need 3 more so 30) ram 40 usd frame 50 usd (I build my own with my 3d printer, but you will likely spend more) 16 gb pen drive 15 usd Totalling 310 Plus the extra power draw will end up costing you more when you do it in bulk, more psus, more outlets Not to mention you will need more space and have more heat to remove. Title: Re: $25,000 Best Gpu for the job? Post by: Zisef on January 17, 2014, 07:02:22 AM Another one smells quick money, so many risks involved would hope you are aware of that. We can wake up tomorrow and markets fall out.
Title: Re: $25,000 Best Gpu for the job? Post by: siikfo on January 20, 2014, 04:18:01 PM Another one smells quick money, so many risks involved would hope you are aware of that. We can wake up tomorrow and markets fall out. I'm only risking what I'm willing to lose ;) Title: Re: $25,000 Best Gpu for the job? Post by: Dabs on January 20, 2014, 04:37:27 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh.
Title: Re: $25,000 Best Gpu for the job? Post by: greenbtc on January 20, 2014, 05:19:28 PM Glad to see people are still paying a premium for GPUs...Heh.
Title: Re: $25,000 Best Gpu for the job? Post by: MoneyMorpheus on January 21, 2014, 04:50:56 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. 0.35 kwh?? that's insane. I pay a bit less than 0.01 kwh Title: Re: $25,000 Best Gpu for the job? Post by: NUFCrichard on January 21, 2014, 05:02:32 PM Another one smells quick money, so many risks involved would hope you are aware of that. We can wake up tomorrow and markets fall out. I'm only risking what I'm willing to lose ;) Title: Re: $25,000 Best Gpu for the job? Post by: hec4mu on January 21, 2014, 05:25:34 PM The best price k/hash wise is the 280x. This. 280x all the way. My number crunching from our real-world rigs and also from other people's data says that the 280x are both the best Khs/USD, and also the best Khs/Watt (when undervolted). This includes the cost of added MB/CPU/RAM/PSUs for buying more rigs.Friendly advice though, you will either need a very large room to host all the machines or a good air conditioner running 24/7. Not to mention you will need to draw a lot of electricity from the wall, you will need to calculate how many machines each outlet from the electrical installation can handle and to add new ones. Its not that hard though... $25k could buy you somewhere around 10x $2500 rigs. $200 for MB/CPU/RAM $200 for 2x 750W PSUs $100 for 5 USB risers $2000 for 5 280x When undervolted, you're looking at ~3.5MH/s @ ~1300W. This puts you at 35Mh/s. I'd suggest running the PSUs off a 240V, which would save a tad on power. Adding in the power requirements for cooling, and you're looking at either 3x 30A or 2x 50A 220 circuits. This is assuming you already have the infrastructure in place. If your power distribution, cooling requirements, and physical housing are included in that budget, you're looking at closer to 8 rigs. Don't go for an ASIC. I doubt we'll get ASICs before 2015. We barely have any FPGAs in the hands of customers, and all the companies that are claiming ASICs are sketchy as all hell. Hi crazyates or anyone willing to help. Ive been researching a bit myself on the forums but Im new to all the mining and hardware required. It's been giving me a headache and I was wondering if you would be able to recommend me specific parts for a $2.5k-$3k build. I guess from what I read the 280x is the best? Maybe the 280x toxic from sapphire? I know I will continue to build after the initial spend of $2.5k to $3k so if I'm looking to add more cards later what would be the best setup? I've heard people with 6 or 8 gpus in one set up. What specific brand and model for a MB that can handle multiple gpus? Also what brand/model is favorable and popular for mb,cpu, ram, psu? Title: Re: $25,000 Best Gpu for the job? Post by: MoneyMorpheus on January 21, 2014, 06:38:17 PM The best price k/hash wise is the 280x. This. 280x all the way. My number crunching from our real-world rigs and also from other people's data says that the 280x are both the best Khs/USD, and also the best Khs/Watt (when undervolted). This includes the cost of added MB/CPU/RAM/PSUs for buying more rigs.Friendly advice though, you will either need a very large room to host all the machines or a good air conditioner running 24/7. Not to mention you will need to draw a lot of electricity from the wall, you will need to calculate how many machines each outlet from the electrical installation can handle and to add new ones. Its not that hard though... $25k could buy you somewhere around 10x $2500 rigs. $200 for MB/CPU/RAM $200 for 2x 750W PSUs $100 for 5 USB risers $2000 for 5 280x When undervolted, you're looking at ~3.5MH/s @ ~1300W. This puts you at 35Mh/s. I'd suggest running the PSUs off a 240V, which would save a tad on power. Adding in the power requirements for cooling, and you're looking at either 3x 30A or 2x 50A 220 circuits. This is assuming you already have the infrastructure in place. If your power distribution, cooling requirements, and physical housing are included in that budget, you're looking at closer to 8 rigs. Don't go for an ASIC. I doubt we'll get ASICs before 2015. We barely have any FPGAs in the hands of customers, and all the companies that are claiming ASICs are sketchy as all hell. Hi crazyates or anyone willing to help. Ive been researching a bit myself on the forums but Im new to all the mining and hardware required. It's been giving me a headache and I was wondering if you would be able to recommend me specific parts for a $2.5k-$3k build. I guess from what I read the 280x is the best? Maybe the 280x toxic from sapphire? I know I will continue to build after the initial spend of $2.5k to $3k so if I'm looking to add more cards later what would be the best setup? I've heard people with 6 or 8 gpus in one set up. What specific brand and model for a MB that can handle multiple gpus? Also what brand/model is favorable and popular for mb,cpu, ram, psu? Check the asrock h81 btc pro. It has 6 pcie slots and it is quite cheap. But that is not available in my country. I'm currently using asus f1a75-v evo and asus m5a99x evo; both have 5 pcie slots, which you can populate 3 without risers, but the cards are really near to each other. Title: Re: $25,000 Best Gpu for the job? Post by: siikfo on January 21, 2014, 07:06:15 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. jeeze man in what country is it 0.35 kwh? if i were you i would have it hosted somewhere else lol Title: Re: $25,000 Best Gpu for the job? Post by: greenbtc on January 21, 2014, 07:26:31 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. jeeze man in what country is it 0.35 kwh? if i were you i would have it hosted somewhere else lol Europe has some pretty crazy electric rates, so does California once you get into the higher tiers. At .35/kwh, it does make sense to look at some sort of hosting solution. Title: Re: $25,000 Best Gpu for the job? Post by: Rubberduckie on January 21, 2014, 07:30:07 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. jeeze man in what country is it 0.35 kwh? if i were you i would have it hosted somewhere else lol Europe has some pretty crazy electric rates, so does California once you get into the higher tiers. At .35/kwh, it does make sense to look at some sort of hosting solution. Try running Rigs in Australia, electricity here is ridiculously expensive! AND you have to have aircon running when its often over 30 degrees outside :( Title: Re: $25,000 Best Gpu for the job? Post by: greenbtc on January 21, 2014, 07:31:29 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. jeeze man in what country is it 0.35 kwh? if i were you i would have it hosted somewhere else lol Europe has some pretty crazy electric rates, so does California once you get into the higher tiers. At .35/kwh, it does make sense to look at some sort of hosting solution. Try running Rigs in Australia, electricity here is ridiculously expensive! No thanks :) I moved to where I am specifically for the rates I get. .02kwh! Title: Re: $25,000 Best Gpu for the job? Post by: Shenrox on January 21, 2014, 09:38:57 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. 0.35 kwh?? that's insane. I pay a bit less than 0.01 kwh lol, what currency is that, I pay 1.23 kwh on prepaid electricity.... Title: Re: $25,000 Best Gpu for the job? Post by: Amph on January 21, 2014, 09:58:17 PM I've done my own computations for my local store, and while the 280X's will be denser and have less rigs for the hash rate, I'll be going with 270X rigs. They cost less for me to buy and run; electricity in my country is expensive at 0.35 / kwh. jeeze man in what country is it 0.35 kwh? if i were you i would have it hosted somewhere else lol Europe has some pretty crazy electric rates, so does California once you get into the higher tiers. At .35/kwh, it does make sense to look at some sort of hosting solution. Try running Rigs in Australia, electricity here is ridiculously expensive! No thanks :) I moved to where I am specifically for the rates I get. .02kwh! where? Title: Re: $25,000 Best Gpu for the job? Post by: Dabs on January 22, 2014, 02:59:29 AM I'm in the Philippines. I can get as low as 0.29 USD per KWH on industrial rates. Hosting in another location looks good, but shipping and import/export/etc... and if something goes wrong, I'm not there.
Now, if I were doing $25,000 USD worth of rigs, then I'd send it off to Kuwait or something. Title: Re: $25,000 Best Gpu for the job? Post by: kalus on January 22, 2014, 07:01:14 AM I'm in the Philippines. I can get as low as 0.29 USD per KWH on industrial rates. Hosting in another location looks good, but shipping and import/export/etc... and if something goes wrong, I'm not there. Bahrain is cheap electricity too, and high-rise apartments can be bought for $45,000/56BTCNow, if I were doing $25,000 USD worth of rigs, then I'd send it off to Kuwait or something. Title: Re: $25,000 Best Gpu for the job? Post by: tygarbyte on January 22, 2014, 11:05:55 AM The best price k/hash wise is the 280x. This. 280x all the way. My number crunching from our real-world rigs and also from other people's data says that the 280x are both the best Khs/USD, and also the best Khs/Watt (when undervolted). This includes the cost of added MB/CPU/RAM/PSUs for buying more rigs.Friendly advice though, you will either need a very large room to host all the machines or a good air conditioner running 24/7. Not to mention you will need to draw a lot of electricity from the wall, you will need to calculate how many machines each outlet from the electrical installation can handle and to add new ones. Its not that hard though... $25k could buy you somewhere around 10x $2500 rigs. $200 for MB/CPU/RAM $200 for 2x 750W PSUs $100 for 5 USB risers $2000 for 5 280x When undervolted, you're looking at ~3.5MH/s @ ~1300W. This puts you at 35Mh/s. I'd suggest running the PSUs off a 240V, which would save a tad on power. Adding in the power requirements for cooling, and you're looking at either 3x 30A or 2x 50A 220 circuits. This is assuming you already have the infrastructure in place. If your power distribution, cooling requirements, and physical housing are included in that budget, you're looking at closer to 8 rigs. Don't go for an ASIC. I doubt we'll get ASICs before 2015. We barely have any FPGAs in the hands of customers, and all the companies that are claiming ASICs are sketchy as all hell. Hi crazyates or anyone willing to help. Ive been researching a bit myself on the forums but Im new to all the mining and hardware required. It's been giving me a headache and I was wondering if you would be able to recommend me specific parts for a $2.5k-$3k build. I guess from what I read the 280x is the best? Maybe the 280x toxic from sapphire? I know I will continue to build after the initial spend of $2.5k to $3k so if I'm looking to add more cards later what would be the best setup? I've heard people with 6 or 8 gpus in one set up. What specific brand and model for a MB that can handle multiple gpus? Also what brand/model is favorable and popular for mb,cpu, ram, psu? I wish there was a newegg in Aust, for 3k I would get this http://www.newegg.com/Product/ComboBundleDetails.aspx?ItemList=Combo.1532092 Mining Kit UKO-K140K: AMD Sempron 2.8GHz Single Core, 6 X XFX Radeon HD 7970 3GB, MSI 970A-G43 Motherboard, Kingston 4GB RAM, 2 X Rosewill 1000W Modular Power Supply Title: Re: $25,000 Best Gpu for the job? Post by: mrugala on January 22, 2014, 01:55:49 PM If You are looking for pretty cheap 280x cards I still have plenty R9 280x TOXIC's left in my group buy:
https://bitcointalk.org/index.php?topic=426359.msg4651564#msg4651564 Title: Re: $25,000 Best Gpu for the job? Post by: Gazza1 on January 23, 2014, 01:53:46 AM not necessarily. five 270x should run on a 900w power supply with room to spare. same 2200khash rate from three 280x you'd need to get a 1200w power supply, which is a premium priced item. 3 280x does not need 1200w. 3 per 850w tier1 gold psu (undervolted) Title: Re: $25,000 Best Gpu for the job? Post by: crazyates on January 23, 2014, 04:52:53 AM not necessarily. five 270x should run on a 900w power supply with room to spare. same 2200khash rate from three 280x you'd need to get a 1200w power supply, which is a premium priced item. 3 280x does not need 1200w. 3 per 850w tier1 gold psu (undervolted) Title: Re: $25,000 Best Gpu for the job? Post by: spartan82 on January 23, 2014, 05:39:41 AM I'm currently working on a rig set up that will pull between 4.6-4.8mh/s. so far I have it running at 4.5-4.6 with no issues but I'm getting closer to tweaking its max performance.
These units will be 6 x sapphire toxic 280x cards on asrock btc pro motherboards with 2 x PSUs. With shipping whole package around the globe for between $3900-4250 depending on quantities. If anyone is interested in this kind of rig send me a msg! The more the better but ill be limited to just under 30 rigs with this specific card but i can source other 280x and 290/290x models. Thanks guys! |