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Author Topic: new AMD A8-3850 X4 for mining  (Read 2476 times)
silverag47
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July 01, 2011, 04:01:31 AM
 #1

Interested in knowing how this CPU will work for mining seeing how it has shaders built into it as well as it handles graphics.  Does anyone have any insight?
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1.21gigawatts
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July 01, 2011, 05:11:06 AM
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It's not going to be very good.  This is an APU.  Can't really stuff 2 or more of these into a motherboard
fascistmuffin
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July 01, 2011, 07:09:26 AM
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I don't see this having good hashing speeds for the cost. At the end of the day, it's still basically a CPU with some extra features.
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July 03, 2011, 02:32:48 PM
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I am guessing about 75mh/s from the looks of things from the GPU side.  I do not think this will be used in mining much. 

from toms hardware:

"What are Llano’s sexiest attributes? Roughly half of its die is a Phenom II X4 CPU stripped of the 6 MB L3 cache, but with L2 cache doubled to 4 MB. The other half is composed of something very similar to a Radeon HD 5570, with up to 400 Radeon cores (what AMD used to call Stream cores; apparently that name went out of vogue already) and an updated UVD3 video block. All of this is plumbed together on a single 32 nm chip.

That’s the short explanation. Of course, there’s a lot more going on here and we’re about to dig in to the details. Having said that, if you know what a Phenom II X4 and a Radeon HD 5570 can do together then you already have a pretty good idea of where we’ll end up in this piece. "

http://www.tomshardware.com/reviews/a8-3500m-llano-apu,2959.html

plantucha
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July 03, 2011, 03:33:47 PM
 #5

CPU amd x6 1100
CPU miner: minerd -a 4way -t 6
4 mhash/core total   cpu ~22mhas/s

CPU temp 69C with oem heatsink
not sure if is profitable (heat+power) running cpu miner


same time 3xGPU        216mh/s per GPU          total GPU ~ 648mh/s


Ubuntu ~ Narwhal
total PC ~ 650W



Jaime Frontero
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July 03, 2011, 04:36:15 PM
 #6

It's not going to be very good.  This is an APU.  Can't really stuff 2 or more of these into a motherboard

i wonder if this thing will have a passive backplane incarnation.  the whole thing, which is a motherboard of sorts, looks pretty self-contained and is only $130 USD, at what?  ...30-40 watts?

it's got 400 stream processors, which puts it into somewhere around 100Mh/sec territory.

a ten-slot backplane setup would net a Gigahash, at 300-400 watts, for under $1,500 - a bit higher priced than three 5850s (if you can find them) in a three-PCIe slot motherboard with CPU etc., but much lower operating costs.  the 5850s would draw almost 600W just by themselves.

interesting.
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