|
sethmo
Newbie
Offline
Activity: 24
Merit: 0
|
|
July 06, 2011, 07:08:59 PM |
|
I would have if I didn't already buy 4 5830s yesterday!
|
|
|
|
mike678
|
|
July 06, 2011, 07:13:20 PM |
|
This looks like a pretty solid deal when you look at megahash per entire server cost. I don't know the exact numbers though because I'm not sure what is considered a reasonable speed to get out of a 5870.
|
|
|
|
Mousepotato
|
|
July 06, 2011, 07:37:37 PM |
|
This looks like a pretty solid deal when you look at megahash per entire server cost. I don't know the exact numbers though because I'm not sure what is considered a reasonable speed to get out of a 5870.
I'm getting around 440MH/s out of mine. I can't remember where I saw it, but there was a chart comparing MH/s, cost, and power consumption and the 5870 is THE card to get for MH/s vs. Power used.
|
Mousepotato
|
|
|
Serge
Legendary
Offline
Activity: 1050
Merit: 1000
|
|
July 06, 2011, 07:37:57 PM |
|
Out of Stock
these things keep on selling out like hotcakes =)
|
|
|
|
mike678
|
|
July 06, 2011, 07:56:31 PM |
|
I'm getting around 440MH/s out of mine. I can't remember where I saw it, but there was a chart comparing MH/s, cost, and power consumption and the 5870 is THE card to get for MH/s vs. Power used.
If you add up the costs for a server (bare minimum) cpu- $30 ram- $10 psu- $150 mobo- $140 (if you know cheeper then this with 4 pci express then let me know) hd- $15 PCIe x16 Extender Cable $12*4 5870 $190x4 = $1,153 (440x4)/1153=1.53 megahash per dollar(full server cost) with 5830 5830 $110x4 = $833 (330x4)/833=1.58 So as long as you go the absolute cheapest route 5830 rig at 110 is better but not much so. If you add a case or more to the cost at all the 5870 at 190 will probably overcome the 5830.
|
|
|
|
CydeWeys
|
|
July 06, 2011, 08:28:21 PM |
|
I'm getting around 440MH/s out of mine. I can't remember where I saw it, but there was a chart comparing MH/s, cost, and power consumption and the 5870 is THE card to get for MH/s vs. Power used.
If you add up the costs for a server (bare minimum) cpu- $30 ram- $10 psu- $150 mobo- $140 (if you know cheeper then this with 4 pci express then let me know) hd- $15 PCIe x16 Extender Cable $12*4 5870 $190x4 = $1,153 (440x4)/1153=1.53 megahash per dollar(full server cost) with 5830 5830 $110x4 = $833 (330x4)/833=1.58 So as long as you go the absolute cheapest route 5830 rig at 110 is better but not much so. If you add a case or more to the cost at all the 5870 at 190 will probably overcome the 5830. The last price the 5830s was available at was $130, not $110. Using that figure the ratio comes out to 1.445 for the 5830 rig, so the 5870 rig is actually more economical. Not that I would dream of buying new rigs right now!
|
|
|
|
Mousepotato
|
|
July 06, 2011, 08:30:44 PM |
|
^^ Yeah that sounds about right. But when you throw in power draw into the mix, then the 5870 edges out the 5830 setup.
5830 = 310MH/s @ 175w 5870 = 440MH/s @ 188w
40+% bump in MH/s rate for only a 7% bump in power consumption. Just going by memory since I can't find the chart someone posted a while back, so my numbers may be off.
|
Mousepotato
|
|
|
Jack of Diamonds
|
|
July 06, 2011, 09:07:07 PM |
|
^^ Yeah that sounds about right. But when you throw in power draw into the mix, then the 5870 edges out the 5830 setup.
5830 = 310MH/s @ 175w 5870 = 440MH/s @ 188w
40+% bump in MH/s rate for only a 7% bump in power consumption. Just going by memory since I can't find the chart someone posted a while back, so my numbers may be off.
The 5870 doesn't get even near 440mh/s at stock speeds. You would have to overclock it *a lot* putting the power consumption to roughly 250-300 watts. A 5830 doesn't get 310-320 at stock either. That's the absolute maximum with the voltage and core frequency sky high (past 1ghz).
|
1f3gHNoBodYw1LLs3ndY0UanYB1tC0lnsBec4USeYoU9AREaCH34PBeGgAR67fx
|
|
|
Mousepotato
|
|
July 06, 2011, 09:55:19 PM |
|
The 5870 doesn't get even near 440mh/s at stock speeds.
You would have to overclock it *a lot* putting the power consumption to roughly 250-300 watts.
A 5830 doesn't get 310-320 at stock either. That's the absolute maximum with the voltage and core frequency sky high (past 1ghz).
Yeah, like I said my numbers may be off, but the ratios should still be applicable. I was just going by what I have my 5830 and 5870 running at.
|
Mousepotato
|
|
|
mike678
|
|
July 06, 2011, 10:01:56 PM |
|
The last price the 5830s was available at was $130, not $110. Using that figure the ratio comes out to 1.445 for the 5830 rig, so the 5870 rig is actually more economical.
Not that I would dream of buying new rigs right now!
I went with the best possible conditions to show the cheapest scenario. Also just because its not in stock now doesn't mean its gone forever at 110 I mean I just bought a 5830 last week at 110 on newegg.
|
|
|
|
mvoss
Newbie
Offline
Activity: 28
Merit: 0
|
|
July 14, 2011, 03:14:32 AM |
|
I'm getting around 440MH/s out of mine. I can't remember where I saw it, but there was a chart comparing MH/s, cost, and power consumption and the 5870 is THE card to get for MH/s vs. Power used.
If you add up the costs for a server (bare minimum) cpu- $30 ram- $10 psu- $150 mobo- $140 (if you know cheeper then this with 4 pci express then let me know) hd- $15 PCIe x16 Extender Cable $12*4 5870 $190x4 = $1,153 (440x4)/1153=1.53 megahash per dollar(full server cost) with 5830 5830 $110x4 = $833 (330x4)/833=1.58 So as long as you go the absolute cheapest route 5830 rig at 110 is better but not much so. If you add a case or more to the cost at all the 5870 at 190 will probably overcome the 5830. The last price the 5830s was available at was $130, not $110. Using that figure the ratio comes out to 1.445 for the 5830 rig, so the 5870 rig is actually more economical. Not that I would dream of buying new rigs right now! Do me a favor, PLEASE link me to the $140 motherboard for sale with the 4 PCI x slots...
|
|
|
|
mike678
|
|
July 14, 2011, 04:24:30 AM |
|
I'm getting around 440MH/s out of mine. I can't remember where I saw it, but there was a chart comparing MH/s, cost, and power consumption and the 5870 is THE card to get for MH/s vs. Power used.
If you add up the costs for a server (bare minimum) cpu- $30 ram- $10 psu- $150 mobo- $140 (if you know cheeper then this with 4 pci express then let me know) hd- $15 PCIe x16 Extender Cable $12*4 5870 $190x4 = $1,153 (440x4)/1153=1.53 megahash per dollar(full server cost) with 5830 5830 $110x4 = $833 (330x4)/833=1.58 So as long as you go the absolute cheapest route 5830 rig at 110 is better but not much so. If you add a case or more to the cost at all the 5870 at 190 will probably overcome the 5830. The last price the 5830s was available at was $130, not $110. Using that figure the ratio comes out to 1.445 for the 5830 rig, so the 5870 rig is actually more economical. Not that I would dream of buying new rigs right now! Do me a favor, PLEASE link me to the $140 motherboard for sale with the 4 PCI x slots... Its out of stock now I posted this about a week ago but here is the link. http://www.newegg.com/Product/Product.aspx?Item=N82E16813138193
|
|
|
|
mvoss
Newbie
Offline
Activity: 28
Merit: 0
|
|
July 14, 2011, 04:48:35 AM |
|
Out of stock at NEWEGG, but Google shopping stores have 'em. Not for $140, but $161 ain't highway robbery
|
|
|
|
|