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Topic: Xeon Phi - page 6. (Read 36418 times)

legendary
Activity: 1288
Merit: 1225
Away on an extended break
June 19, 2012, 03:15:44 AM
#20

I see 8TH of power staring at me. Shocked My goodness, won't the cards overheat from being so packed against each other?
sr. member
Activity: 310
Merit: 250
June 19, 2012, 03:06:04 AM
#19
Its actually 50+ original Pentium cores (think after 486), just shrunk down to 22nm and built with their 3D Trigate design, Not Sandy Bridge at all. I'm sure they've added some extra instructions but still, it's not much more than that.
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
June 19, 2012, 02:51:13 AM
#18
power draw
I think 200 Watts. Here are some pics, I can see the two 3x2  PCI-E power connectors.






donator
Activity: 490
Merit: 500
June 19, 2012, 02:21:31 AM
#17
I wonder what the power draw of something like this is.
hero member
Activity: 560
Merit: 500
Ad astra.
June 19, 2012, 02:15:29 AM
#16
Mind you it's 1TFLOPS Double Precision.. http://newsroom.intel.com/community/intel_newsroom/blog/2012/06/17/latest-intel-xeon-processors-e5-product-family-achieves-fastest-adoption-of-new-technology-on-top500-list
IMO, no single chip GPU has that kind of performance for double precision arithmetic.

That makes a difference; I just read the post a few above, not the press release. Still, I doubt this will be a gamechanger. Wink

By "highly parallel tasks" does that include two rounds of SHA-256?

Well, I'm sure Intel would say so, but GPUs are also excellent at "highly parallel tasks".
sr. member
Activity: 294
Merit: 250
Bitcoin today is what the internet was in 1998.
June 19, 2012, 01:17:42 AM
#15
By "highly parallel tasks" does that include two rounds of SHA-256?
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
June 19, 2012, 01:09:06 AM
#14
Mind you it's 1TFLOPS Double Precision.. http://newsroom.intel.com/community/intel_newsroom/blog/2012/06/17/latest-intel-xeon-processors-e5-product-family-achieves-fastest-adoption-of-new-technology-on-top500-list
IMO, no single chip GPU has that kind of performance for double precision arithmetic.
hero member
Activity: 560
Merit: 500
Ad astra.
June 18, 2012, 11:14:19 PM
#13
Just ran across this on hardocp.com.

I was post the article till I seen this thread & ask the same questions.

What kind of results would this bring to Bitcoin and Litecoin mining?

I would guess nothing spectactular, especially for its likely price point.

For comparision, a 5870 puts out ~2.7 TFLOPS. Bitcoin mining isn't floating point, but that indicates to some degree that this unit would likely have ~150-200 MH/s. (For comparision, one high-end Xeon core puts out around 3-4 MH/s; multiply that by 50)

As an enterprise product, its pricing will be in the multiple thousands at least. With less than 0.1 MH per dollar, this isn't going to change anything.


hero member
Activity: 770
Merit: 502
June 18, 2012, 10:42:59 PM
#12
Just ran across this on hardocp.com.

I was post the article till I seen this thread & ask the same questions.

What kind of results would this bring to Bitcoin and Litecoin mining?
hero member
Activity: 686
Merit: 500
Wat
June 18, 2012, 10:25:13 PM
#11
Someone should make a coin that is optimsed for nvidia hardware...

NCoin lol
legendary
Activity: 1274
Merit: 1000
June 18, 2012, 10:20:19 PM
#10
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
June 18, 2012, 09:56:44 PM
#9
So what is it, exactly?
50-core x86 co-processor, code named Knights Corner, in a PCIe card.

50 normal cores? And 22nm trigate fab, so its probably some derivative of Sandy Bridge (but with Failabee-like ring busses). I wonder what sort of onboard memory it as and if its considered local memory and normally addressable.
Well apparently they are x86 compatible, but I can't imagine that they are totally complete in the sense that they could be used as a main processor. I seem to recall reduced cache and a few other limitatoins.

Cache isn't the issue, really. But if it still can perform just as well on highly branchy code, I might have a use for one of those.
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
June 18, 2012, 09:53:40 PM
#8
So what is it, exactly?
50-core x86 co-processor, code named Knights Corner, in a PCIe card.

50 normal cores? And 22nm trigate fab, so its probably some derivative of Sandy Bridge (but with Failabee-like ring busses). I wonder what sort of onboard memory it as and if its considered local memory and normally addressable.
Well apparently they are x86 compatible, but I can't imagine that they are totally complete in the sense that they could be used as a main processor. I seem to recall reduced cache and a few other limitatoins.
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
June 18, 2012, 09:52:03 PM
#7
So what is it, exactly?
50-core x86 co-processor, code named Knights Corner, in a PCIe card.

50 normal cores? And 22nm trigate fab, so its probably some derivative of Sandy Bridge (but with Failabee-like ring busses). I wonder what sort of onboard memory it as and if its considered local memory and normally addressable.
sr. member
Activity: 322
Merit: 250
We are bees, and we hate you.
June 18, 2012, 09:29:11 PM
#6
I've been waiting for someone to make something like this...
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
June 18, 2012, 09:15:41 PM
#5
So what is it, exactly?
50-core x86 co-processor, code named Knights Corner, in a PCIe card.
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
June 18, 2012, 09:14:17 PM
#4
So what is it, exactly?
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
June 18, 2012, 08:37:15 PM
#3
Cool! Wonder if it will be the Litecoin endgame. Grin
legendary
Activity: 952
Merit: 1000
June 18, 2012, 07:58:51 PM
#2
The question is: can it mine? 50 cores isn't a lot compared to ATIs thousands, but IIRC, these would be WAY higher clocked?
legendary
Activity: 1274
Merit: 1000
June 18, 2012, 07:09:19 PM
#1
Interesting. Turned the Knights Corner into a PCIe product.

http://www.engadget.com/2012/06/18/intel-christens-its-MIC-products-xeon-phi/



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