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ES Xeon Discussion

Discussion in 'Processors and Motherboards' started by britinpdx, Mar 8, 2015.

  1. JPJ

    JPJ New Member

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    I'm looking at same processor on ebay -- however 2.3GHz is pretty low, ya? I know there are a lot of cores...but I can get retail i7 processors for $350 that are quad core with 4.5GHz clock. At what point does it make more sense to go with large number of cores over clock speed? Again I know it's not apples to apples necessarily, but I keep debating on if these clock speeds will deliver performance when I'm trying to implement deep neural network training algos.....
     
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  2. Rand__

    Rand__ Active Member

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    The old question - the old answer:

    If you need little RAM, no ECC, go retail.
    If you need more ram and high speed go e3 or single e5. If you need even more ram and more cores go e5 workstation (higher clock) or high end (more cores).
    If your application uses multiple threads in parallel then it should be able to use many cores at once, else it will run better on high single thread performance cpus
     
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  3. Nanotech

    Nanotech Active Member

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    QK3G is an ES2 and QHVK is an ES1. QK3G has R0 stepping while QHVK has L0 stepping. R0 is production stepping and L0 is an early stepping.

    The point in my opinion when to go with a larger number of cores versus clock speed is when you aren't using it for activities or tasks such as gaming or others. However if the applications you know are single-threaded then a higher clock speed with less cores is better. To give you an example Xeons can be used for gaming but in some situations that aren't GPU bound at higher resolutions you may find that due to the single threaded nature or focus a higher clock speed will edge out a lower clock speed higher core Xeon.
     
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  4. DrMuffinMD

    DrMuffinMD New Member

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    Hey! I just picked up an E5-2658 V3 QGP5 with a supposed stepping of M1. I can't find much on the specifics of the QGP5 but from what I gather the QG's are pretty close to retail no? The turbo of the retail goes up to 2.9Ghz, but I found an auction that showed a QGP5 only going to 2.5Ghz. Not too big of a deal if it doesn't do the full 2.9, does anyone have experience with this CPU?
     
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  5. ajschot

    ajschot New Member

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    I am happy with my E5-2630v4 ES QHVK i know it is al early stepping but for €140 is was a bargain. I have it on ny supermicro X10SRi-F and running ESXi with FreeNAS, Windows 10, Ubuntu and it is running well. No problemas at all and runs stable.
    Hope it will running well for years.
    I did not find this forum before buying and also looking for a 2683Wv3 or v4 for my workstation but these are hard to find and when i find a high speed it is out of my butget. But first i could get a 2658v4 very cheap also a QS which i going to use with my ASRock x99 extreme 4 till i get a faster one.
    I do mainly photo, video and audio editting so it is enough but so now and then i would like to play a game so i will wait and maybe there are some comming in the future.
    For now i am happy with my home server with E5-2630v4 ES 64GB DDR4 ECC and my workstation for now E5-2658v4 QS.
    For my workstation i still thinking about using normal udimms is that possible? Because then i will get 64GB DDR4 3000
     
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  6. Nanotech

    Nanotech Active Member

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    QGP5 is a QS so it has identical M1 stepping as a production processor and identical turbo and clock speeds. The QGP5 will do the same 2.9Ghz turbo with 1/2 cores only. The auction showed a E5-2658 QGP5 at 100% load meaning 2.5Ghz when all cores are under load. When 1 or 2 cores are under load it will boost to 2.9Ghz and the turbo bins/boosts are identical to a production processor.
     
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  7. waith

    waith Member

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    Has anyone successfully used VT-D on a E5-2670 V1 C0 (QB7A) stepping? I've been able to pass through a few GPUs using Hyper-V 2016, but I was never able to install drivers for them.
     
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  8. TLN

    TLN Member

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    May be dumb question, but how do I know what is stepping B or C from CPU-Z?
    If it says revision 2 it means C, or what?
     
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  9. DrMuffinMD

    DrMuffinMD New Member

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    Fantastic news! And thanks for the insightful info, the CPU will be here tomorrow so I'm excited to test it out!
     
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  10. Nanotech

    Nanotech Active Member

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    No problem. In my opinion a QS generally offers the same exact performance and stability as a production processor but at a more affordable price-point because it's still technically an engineering sample.

    For which processor?
     
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  11. TLN

    TLN Member

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    I'm looking at 2658 v3, 2667 v3, 2683 v3. Most likely the latter.
     
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  12. Nanotech

    Nanotech Active Member

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    Stepping 2 in CPU-Z is production stepping for those V3 processors so those are QS parts. If you see Stepping 1 in CPU-Z for those V3 processors then it's an ES2. Therefore Stepping 2 is what you want to look for either production or QS and Stepping 1 for a cheaper ES2. I've yet to see 2667 V3 in stepping 2 CPU-Z. They are usually Stepping 1 which are ES2. 2683 V3 has both stepping 1 and stepping 2 (qs/production) available for sale. 2658 V3 also has both steppings from cpu-z available for example on eBay.

    I think the VT-d capability for a C0 stepping is unknown. I remember seeing on the first page that the VT-d status was unknown but C1 definitely has it disabled and C2 has it re-enabled.
     
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    Last edited: Feb 7, 2017
  13. Klee

    Klee Active Member

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    Well I have my latest build running with the dual E5-2667 V3 ES cpus. They are VERY odd LOL. Nothing matches a E5-2667 V3. First of all they have 35mb of L3 cache instead of 20mb on the retail one. Second HWiNFO64 shows them to be a 14 core with only 8 that are used.

    [​IMG]
     
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  14. Klee

    Klee Active Member

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    I just ran CPUID HWMonitor and look how the cores are labled.

    [​IMG]
     
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  15. Klee

    Klee Active Member

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  16. RickGrick

    RickGrick Member

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    Please I need help. What is the highest clocked V3/V4 CPU for <450$ with good performance for rendering?
     
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  17. jazzz

    jazzz New Member

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    2683 v3 $350
     
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  18. Aluminum

    Aluminum Active Member

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    My 1680v2 is like that, 8 cores but has the full L3 cache of a 10 core (2690v2: 25MB) that it was "cut down" from. Will show up as different core #s as well. Long shot, but you might want to try one in an X99 board and see if it is unlocked.
     
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  19. RickGrick

    RickGrick Member

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    Thanx. Do you mean no ES?
    How much MHz it get with all cores working? Do you know many point in R15 cinebench?
     
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  20. jazzz

    jazzz New Member

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    allcores turboboost 2.5 for retail 1700-1800 r15
    allcores turboboost(unlocked read on forum how to unlock) 3.0 2200 r15
     
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