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Quick & Short CPU question for my new 2011 build …


GDog
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As some of you already know (Drashna  :)), I am building a new 2011 box to transition from V1 finally. The system is built around the very reliable SuperMicro X7SBE Mainboard with the LGA775 socket. I will be utilizing the Antec 900 Case with 3 of the SuperMicro CSE‑M35T‑1B 3to5 Mobile Racks, giving me a total HDD capacity of 15 drives. The System drive will be mounted on the floor. When I need more than 15 drives, I will start using higher density HDD’s or a RAID box. Right now all my HDD's are 2TB.

http://www.supermicro.com/products/motherboard/Xeon3000/3210/X7SBE.cfm 

http://www.supermicro.com/products/accessories/mobilerack/CSE-M35T-1.cfm

 

I already own 2 CPU’s that will work in this board, so I want to use one of them:

 

The Dual Core 65W 3.16GHz Intel Core 2 Duo E8500:

http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Duo%20E8500%20EU80570PJ0876M%20-%20AT80570PJ0876M%20(BX80570E8500).html

 

The Quad Core 95W 2.66GHz Intel Xeon X3330:

http://www.cpu-world.com/CPUs/Xeon/Intel-Xeon%20X3330%20-%20EU80580KJ0676M%20-%20AT80580KJ0676M%20(BX80580X3330).html

 

Both are 45 Micron Technology. Which of these CPU’s do you think would be the best choice for this build? The decision as I see it is this: Does the 4 cores at 2.66GHz trump the 2 cores at 3.16GHz? I am having a bit of trouble deciding, so I thought I would see what you guys think.

Thanks as always for your expert advice,
GDog

Edited by GDog
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Hey Poppapete,

Thanks for responding. It will be used for backups, archiving and media storage and streaming. No compiling, rendering or transaction processing.

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If you're not running VMs, doing transcoding, rendering, etc., go with the Core 2 - you don't need a Xeon for what you stated.

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Well, then given that, I also have a Dual Core E7300 that runs at 2.66GHz. Is there a big advantage to the higher speed E8500 at 3.16GHz, or would I not gain that much in a Server like I described? The E8500 also has a 6MB L2 cache compared to the 3MB L2 cache in the E7300. I'm running a Pentium Dual Core E5200 in my V1 Server right now, so any of these will probably be an improvement over what I am currently using.

Thanks again,

Gary

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I'd recommend that E8500, it's a bit higher clock speed, uses a faster FSB (1066  vs 1333), and larger cache.  You'll get a bit better performance.

 

I'd love to say "use the Xeon", but ikon is right here, unless you're doing CPU intensive tasks (like VMs, or a lot of transcoding), you'll be better off with the dual core at a higher speed and larger cache.

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The i5 in my signature can handle 12 VMs with about a 20 percent load. The i3 on the 2011 box is more than sufficient.
 

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I would recommend the Xeon. Because you already own it. Even the E8500 is still sufficient right now, you should consider that it is a server which should run for several years and you might need some more power for future expansion. My experience is that in the long run you always need more power than expected and two more cores can make a difference.

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All valid points and it is really a matter of features and benefits that each on can provide versus a tradeoff for more power consumption which no one has mentioned.

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