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fitty (OP)
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June 17, 2011, 07:14:43 AM |
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I'm looking into setting up a 2-4x gpu rig. In terms of power/performance the 5770s look pretty good.
5770 is around 200 Mhash/s and the max power draw is around 108 watts.
Everywhere I've looked the 5830 is at least 50% higher power draw and some places have it over 200 watts under max load. So the 5830/5850 is 150-200 watts which makes it much less efficient then the 5770. Even if the 5850 call pull 300 Mhash/s most sites put it close to 200 watts full load. You'd be better off with two 5770s (400 mHash/s) for the same power. If you look at 3 or 4 in a rig then the 5770 is even better.
Price wise the 5770 is $95-$110 and given the power savings I don't see why people buy up the 5830s like they are gold when you're better off with the 5770?
With 4 5770s you're looking at 800-900 Mhash/s for 432 watts. The 5870s can get close to that but they're impossible to find, and just as (or more) expensive. Four 5830s/5850s are hard to find and would use a boat load more power without much more performance.
I must be missing something, thanks for any help you can offer. =)
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Volrath
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June 17, 2011, 07:29:39 AM |
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The watt difference is miniscule (price-wise) compared to the benefit of the added MH/s. Yes you will burn 72 kWh/month more worst case scenario, but 5830 will also "mine" 30% more BTC than the 5770 which very well makes up for the added cost of both the initial purchase and the electricity bill.
Also, if you are planning on expanding on your mining operations with a second/third/n-th mining rig, it makes sense to put as powerful a card as you can, in order to save motherboard space. And in the long term, that will save you power (less machines to output same MH/s)
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Sitarow
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June 17, 2011, 07:43:33 AM |
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I also injoy the fact that they do rather well side by side with keeping cool.
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Gdecelia
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June 17, 2011, 08:14:50 AM |
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its simple.. 5830's are the best "bang" for your buck
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lmlbs
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June 17, 2011, 08:16:00 AM |
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I just purchased 5850 since it seems that price/performance is better then on any other card I've looked at. Of course I did not benchmark it myself yet, but looking at the performance table - https://en.bitcoin.it/wiki/Mining_hardware_comparison - seems like 5850 is optimal choice. If it really can be tuned to do 330 Mh/sec, then 3 cards can do 1 GH/sec - and the average cost of HD5850 is about $200 +/- $30, i.e. about $600 for 1 GH/sec rig. Compare that to $700 pricing on HD6990 based cards, for LESS then 1GH/sec performance. Some people suggest this is special pricing due to ATI's attempt to reduce inventory ( http://www.mmo-champion.com/threads/910965-Sapphire-Xtreme-Radeon-HD-5850) Anyway, I'm ordering 3 more of them now.... it's also good for gaming, can be liquidated if need be. |
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fitty (OP)
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June 17, 2011, 08:16:56 AM |
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So really the power consumption is much less important then the dollar cost/performance of the cards? That makes sense, thanks for the reply. =) The watt difference is miniscule (price-wise) compared to the benefit of the added MH/s. Yes you will burn 72 kWh/month more worst case scenario, but 5830 will also "mine" 30% more BTC than the 5770 which very well makes up for the added cost of both the initial purchase and the electricity bill.
Also, if you are planning on expanding on your mining operations with a second/third/n-th mining rig, it makes sense to put as powerful a card as you can, in order to save motherboard space. And in the long term, that will save you power (less machines to output same MH/s)
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Roland68
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June 17, 2011, 09:35:08 AM |
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The 5830 can be found at about 50 usd here in france ...at the moment good bargain ...
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Miner SiX
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June 17, 2011, 09:41:10 AM |
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The 5830 can be found at about 50 usd here in france ...at the moment good bargain ...
You should buy loads of those and sell for all miners. I bet that reselling would give a lot more profit than mining  |
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lmlbs
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June 17, 2011, 09:43:03 AM |
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The 5830 can be found at about 50 usd here in france ...at the moment good bargain ...
You should buy loads of those and sell for all miners. I bet that reselling would give a lot more profit than mining Wow! Yes, sure, please tell me where they can be ordered for $50, preferably online? |
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mjoz
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June 17, 2011, 10:06:03 AM |
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I'm looking into setting up a 2-4x gpu rig. In terms of power/performance the 5770s look pretty good.
5770 is around 200 Mhash/s and the max power draw is around 108 watts.
Everywhere I've looked the 5830 is at least 50% higher power draw and some places have it over 200 watts under max load. So the 5830/5850 is 150-200 watts which makes it much less efficient then the 5770. Even if the 5850 call pull 300 Mhash/s most sites put it close to 200 watts full load. You'd be better off with two 5770s (400 mHash/s) for the same power. If you look at 3 or 4 in a rig then the 5770 is even better.
Price wise the 5770 is $95-$110 and given the power savings I don't see why people buy up the 5830s like they are gold when you're better off with the 5770?
With 4 5770s you're looking at 800-900 Mhash/s for 432 watts. The 5870s can get close to that but they're impossible to find, and just as (or more) expensive. Four 5830s/5850s are hard to find and would use a boat load more power without much more performance.
I must be missing something, thanks for any help you can offer. =)
Saying the 5830 is faster but uses more energy is like say that .50cal Desert Eagle is powerful but is loud. You see, no one cares about the loud part. |
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btcdtc
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June 17, 2011, 12:40:45 PM |
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5850 Xtreme only cost 140bucks
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Roland68
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June 20, 2011, 07:04:59 PM |
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The 5830 can be found at about 50 usd here in france ...at the moment good bargain ...
You should buy loads of those and sell for all miners. I bet that reselling would give a lot more profit than mining Wow! Yes, sure, please tell me where they can be ordered for $50, preferably online? SOORY SORRY I'm so stupid .... I converted the wrong way ... the card cost 80 euros here ... convert yourself in USD ... my fault! |
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scar
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June 20, 2011, 07:29:47 PM |
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is it OK to install a 5830 into a system that already has a lesser card in it, like a 4850? and then use both to mine? or would it be more cost-effective to just get 2 5830's?
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Roland68
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June 20, 2011, 07:41:27 PM |
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is it OK to install a 5830 into a system that already has a lesser card in it, like a 4850? and then use both to mine? or would it be more cost-effective to just get 2 5830's?
about 80 MH for the 4850 ... about 250 Mh for the 5830 .... start with the existing card + one 5830 ... You may have to change both card (or stop mining) when difficulty become to high ... happy mining! |
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speckman
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June 20, 2011, 11:34:41 PM |
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I think when you're looking at the hardware mining comparison chart, don't use the highest numbers for each card. You can take them up that far, but you void the warranty, probably stress the shit out of your fan, and just generally lessen the life of the card. IMO, not worth the extra 1/8 or so Mh/s. Without the bios overclocking of the cards, my 5830 gets about 260, and my 5850 gets about 290 (or something like 275 and 300 if I use -k phatk in phoenix miner, I think). That's not much of a difference. I use a couple external fans for circulation, and my gpu fans are at about 50-60%. I want to keep these cards for a long time, not burn them up in a few months. Just my opinion, and I'm trying to post wherever I can so I can stop being a newbie |
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Akeeru
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June 20, 2011, 11:56:04 PM |
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First of all you got your numbers a bit off.
5770 does not do 200 Mhash/sec at least not stock clocks.
Secondly if you want to compare with 5850, you have to at least count the 5850 for around 350 Mhash/sec.
I am currently running a 4850 @ 90 Mhash/sec and 5850 @ 350 Mhash/sec (got the 5850 to 400, but clocked it back down since it was a huge OC - still in the safe zone temp. wise).
Running them in the same rig to answer above question get one now and upgrade later.
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unmitigated
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June 21, 2011, 04:24:45 AM |
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If nothing else convinces you, try and find yourself a 5850/5830 for the prices mentioned in other threads. No, really, try.
I'll wait.
Not to troll you too hard, but the lack of availability of this card attest to it's use in the environment. If it wasn't what people say it is, then everyone who was the early adopter would have simply sold their own off mid-hype. The fact that this far in people are still both stating it's praises and it's this difficult to get them means that they're likely the real deal.
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bogidu
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Marketplace for sensor data
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June 21, 2011, 04:30:44 AM |
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I look at it this way. Four 5830's doing 1.2GHashes/sec for $440 shipped. Seems pretty reasonable to me.
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Karen Palen
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June 21, 2011, 04:35:56 AM |
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The 5830 can be found at about 50 usd here in france ...at the moment good bargain ...
I will take 100 at that price! |
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Slab Squathrust
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June 21, 2011, 04:39:05 AM |
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The 5830 can be found at about 50 usd here in france ...at the moment good bargain ...
You should buy loads of those and sell for all miners. I bet that reselling would give a lot more profit than mining I know a guy who was selling 40-60 5870's a week at $200 apiece. Apparently he was getting them for way cheap. He made a killing |
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