Xeon dual cpu's based on 771 socket versus FX8370

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MIGO__

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Dec 5, 2015
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Hi everyone,


I have a question about as described on the title.
Last week I found out that I have a xeon dual cpu supporting mobo in the garage.

And I googled a bit and I came to a conclusion that
a composition of 2 cpu's might be even better than my recent single cpu.

What do you guys say?
 
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Assuming you have a dual socket 771 Xeon board... Your 8370 8 core @ 4ghz will win any form of benchmark. If you're curious, goto YouTube and search for "$150 gaming PC 8 core" video by LinusTechTip.
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kanewolf

kanewolf

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It would depend on what CPUs you have installed. Costs for some things will be higher, dual ATX12V power supply, ECC ram, electricity, dual coolers, pro version of the OS required, etc. You will probably only get PCIe 2.0 for expansion slots, ram speed will be lower. There are many on this board that use older generation workstations, Dell T series or HP Z and XW series as their "daily driver" ...
 
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blazorthon

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Sep 24, 2010
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Just because they support ECC memory doesn't mean you need to use it and there are many consumer power supplies with two CPU power plugs.

However, no, dual LGA 771 Xeon will not be better than an FX-8370, so there isn't much point in this when you already have the FX. If you want a dual CPU solution, then check out LGA 1366. There are some cheap CPUs for it going around the used markets and that could offer a real performance advantage.

EDIT: I should also note that you could try using the mobo for something else or selling it. It's not a bad platform, so there's no sense in wasting it even though it wouldn't be better than what you have now.
 
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kanewolf

kanewolf

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I would disagree with your statement on ECC ram. Dual socket motherboards are usually ECC only. Also, power supplies with dual ATX12V plugs are not mainstream. They are definitely available from most manufactures, but they usually command a premium over mainstream/gaming powersupplies which sell a much higher volume.
 
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MIGO__

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Well.. Thanks for good advices. And what if I overclock them? I couldn't get enough source from web to adjust them by FSB-change. Anyone knows anything about it?
 
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blazorthon

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That only applies to motherboards which use buffered memory and that's because nobody makes buffered non-ECC memory.

Also, many of EVGA's power supplies have two 4+4 pin connectors without being very expensive.
https://pcpartpicker.com/part/evga-power-supply-120g10750xr
Its really not an uncommon feature. One of the cheaper 80+ gold and modular power supplies of its range.

We can go even cheaper. The cheapest, decent-quality 750W PSU is EVGA's 750W bronze here:
https://pcpartpicker.com/part/evga-power-supply-110b10750vr
$50, two 8 pin CPU power plugs.

Thanks to EVGA, dual-CPU systems on the cheap for power supplies are easy.
 
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blazorthon

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Dual-socket motherboards tend to not support overclocking. The only ones that I know do are enthusiast dual-socket boards and those are rare and expensive, like the SR2.
 
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neonmatrix

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Assuming you have a dual socket 771 Xeon board... Your 8370 8 core @ 4ghz will win any form of benchmark. If you're curious, goto YouTube and search for "$150 gaming PC 8 core" video by LinusTechTip.
 
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MIGO__

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Dec 5, 2015
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Wow... your answer was quite close enough to my point, but it has not totally solved my curiosity.
The reason why is that he didn't actually pick the fastest cpu among them and plus he didn't even try to overclock them.

My point is what if I prepare them just as I've imagined and my assumption is x5470 or 5492 [x2] could possibly beat the 6600 or 6700k in numbers.

That is why I want to give it a try... and besides.. My gtx 680 lightning is easily fitted into the 771 mobo:>
And I say to myself... what the?.. conspiracy theory...:> You know what I'm saying.. haha
 
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blazorthon

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Sep 24, 2010
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No amount of LGA 771 Xeon cores will beat modern i7s in gaming (regardless of their stable overclock frequency, assuming they even can be overclocked), at least not with games currently out. None of them scale so well that anything will beat an i7-6700K. Most games won't even scale well enough to beat an i5.

Again, you need one of the SR2 motherboards or similar for overclocking dual-CPU Xeon boards, so overclocking isn't an option whereas it is for the FX-8370. You can't beat what you have with LGA 771. If you are really interested in a dual-CPU solution, then LGA 1366 is your best option.
 
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