12 and 16 core Intel Xeon D are the official TDPs 45W?

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Patrick

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Officially, the 12 and 16 core Xeon D chips are not launched yet. We will have information on these as soon as we can release it. I will say that if you look to the current set of 45w and 35w TDP chips, it seems as though going from 4 cores to 8 cores did yield some increase in TDP for the newest generation D-1518 to D-1541 chips.
 
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MiniKnight

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That's what I was thinking too. How can you go from 8>16 cores and not double or close to double the TDP unless you make them 1GHz parts or something people wouldn't want.
 

Deslok

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TDP wouldnt necessarily double since not all core logic is doubled, and a bump to 55w at 16 cores wouldnt be the worst if it kept the clock rate at 2+ghz) I haven't seen a die photo to break down how much space is used for I/O but core M (which is a 4.5w tdp) used a good portion for non cpu things, this photo could probably be used to get a good estimate on what a xeon-d die looks like or at least to help identify what's what on one(does someone have a die photo?)
 

Patrick

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Core M is a bit different architecture. I do know the answer just need to wait a bit to disclose.
 

mstone

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TDP wouldnt necessarily double since not all core logic is doubled, and a bump to 55w at 16 cores wouldnt be the worst if it kept the clock rate at 2+ghz) I haven't seen a die photo to break down how much space is used for I/O but core M (which is a 4.5w tdp) used a good portion for non cpu things, this photo could probably be used to get a good estimate on what a xeon-d die looks like or at least to help identify what's what on one(does someone have a die photo?)
Well, forget about graphics, so it's just the right hand side. You'll amortize a few things (storage & network controllers, etc) across more cores, but the biggest part of the chip will get doubled (cores & cache).
 

Deslok

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Well, forget about graphics, so it's just the right hand side. You'll amortize a few things (storage & network controllers, etc) across more cores, but the biggest part of the chip will get doubled (cores & cache).
Are we sure that those are the biggest part of the chip? the x540-T2 has a 13.3 watt TDP on it's own granted that's on a 40nm lithography not 14nm but I'd be suprised if a big part of Xeon-D isn't those ethernet controllers in addition to the integrated PCH being normally a 6watt part of it's own, especially on the smaller(quad core) Xeon-D parts I'd be suprised if the TDP wasn't more feature than core driven
 

Deslok

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65W isn't bad if it's still 2+ghz also that board with that many SAS ports in an ITX formfactor would be fantastic, I don't need 2x pcie when everything i could ask for is built in XD
 

Owen

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Any chance of getting one in for a review Patrick? I am sure everyone would like to see it ;)
 

Patrick

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Intel is reading 16-core Xeon D-1571 processor for microservers

If that list is accurate at all the 1571 is going to be 45w@1.3ghz(no turbo listed probably the same spread we've seen on others though so 1.7 to 1.9ghz max)
Guys, I had this all written last week. There is going to be a lot of content when I get the go-ahead.

One area that I do not have full details on, but want to set expectations around, is that I believe that $1220+ figure for the D-1571 from Intel's price list is going to be accurate. At higher clock speeds a 16 core Broadwell DE may have the power to make people thinking about 128GB 16 core servers take pause.

Believe me, I spent most of last week rushing through writing this stuff and have been running regressions all weekend remotely.
 
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