Matched Pair Intel Xeon X5675's free shipping $102.50

Fritz

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Apr 6, 2015
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For those who have a need, this is a killer deal.
 

Fritz

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Crap. My bad. Forgot the link and now they're gone. It wasn't an auction it was a buy it now. :(
 

nk215

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Oct 6, 2015
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I don't understand what's so good about a dual x5675 setup. It gives you about the same performance as a E5-2670 at much higher power usage.

I would gladly pay a little more for an 2011 board (vs 1366) just for the power saving and PCI3 alone.
 

ttabbal

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Mar 10, 2016
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It's not a little more for 2011 though. At least, it wasn't when I bought a while back. I got motherboard, cpus (slower than these), and 98GB RAM for less than a 2011 motherboard. Not as fast, but good enough for now. Too bad about these, I would have picked up a pair for about 100.

Mac pro users like them as they are about as fast as they can go without replacing the whole box.
 

Fritz

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I don't understand what's so good about a dual x5675 setup. It gives you about the same performance as a E5-2670 at much higher power usage.

I would gladly pay a little more for an 2011 board (vs 1366) just for the power saving and PCI3 alone.
I have one of each and I'm not seeing any difference in power consumption. The E5 2670 does out perform the X5675 (Cinebench - 1452) E5 2670 (2001).
 
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Dhiru

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Aug 14, 2016
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X5675 Xeons on X58 (1366) motherboards can be overclocked unlike the E5-2670 on x79 (2011) boards.
 

fractal

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I have one of each and I'm not seeing any difference in power consumption. The E5 2670 does out perform the X5675 (Cinebench - 1452) E5 2670 (2001).
Neither do I. PCI3 may be compelling but the X56xx line compares favorably with the E5 v1 line in terms of power / performance. My dual X5675 beats dual 2670's in most of the BOINC projects I compete on when we run head-to-head and the dual X5675 unique components (motherboard + processors) cost about half the comparable E5-V1 components.

The older LGA1366 processors are a totally different story. The 45nm 55xx series are not as efficient as the e5-v1's but the 32nm 56xx series are right in line with the 32nm E5 2670 (v1) for power.

I wonder if Cinebench can take advantage of the extra cache on the 2670. Both are pretty much memory limited by DDR3 when you exceed cache.
 
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Diavuno

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While not a fan of throwing money at such old equipment I do have many clients who still run 1366 (do to budget) (some on 771 until I gave them 1366)

Even I run about half of my business on 1366, some E5, many E3 mostly V2 and V3

With the switch to DDR4 I will probably wait until DDR4 starts to hit Ebay before upgrading next.
 

nk215

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My 1366 setup run about 50 watts more than my dual E5-2670v1 setup (let alone a single E5v1 setup for equivalent computing power). The chipset and memory on my 1366 need cooling fans just for me to be comfortable.

My dual 1366 and dual E5 setups are not using similar components so I can't really make a direct comparison but I am very sure my dual 1366 is no where near efficient as a single E5v1 setup for similar performance (which I can put together next weekend for a test setup with X9SRL-F).

I do agree that 1366 is inexpensive compared to E5 setup if you go with Supermicro E5 boards ($250-$270 for a full featured board with many PCIe slots). A Natex deal with intel board reduces the gap significantly. With everything considered, I think a $150-$200 premium for a single E5-2670 setup is worth it over a dual 1366 X56xx setup.
 

ttabbal

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I think a $150-$200 premium for a single E5-2670 setup is worth it over a dual 1366 X56xx setup.

Your delta is the whole system cost I had. About 150 for mobo, 2x CPU, and RAM. Even if the power use is 50W higher, that's noise on my power bill. Perhaps not something to be proud of, but it is what it is.

I'm not saying you are wrong, just pointing out that everything is relative. To do a dual E5-2670 system from Natex with similar RAM amounts, was about $500 at the time. I can run my box for a long time on $350 worth of power. By that time, 2670 setups or maybe even Zen based systems will have come down enough to consider for me. And my CPU use is rarely over 20%. The only reason I'd consider getting faster CPUs is that I can see a possible increase coming from Plex transcodes as I set up more players.

Granted, you're talking about single chip setups. There wasn't a lot of single chip around at the time in server boards, and IPMI with KVM was a requirement for that build. While you could use a dual board with a single chip. At the time, that would shave about $70 off the total. It looks to be about $85 now.
 

Evan

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Jan 6, 2016
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I would point out a HP DL380 with dual X5670 is almost free but a DL380 Gen 8 with dual E5-2670v1 is worth a few hundred at least. (144/192gb in the G7, 128/256gb in Gen8)
Idle power consumption is 50-60watt more in those configs (not sure for example what difference emulex lp11k vs 12k would make in that)

But if you don't run it 24x7 the old gear can be ok, especially if it's more or less free. (Can even take the memory and use it in E5 v1 system later :)
 

Fritz

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I put together a workstation based on a X8DTL-3F, 2 E5649's and 48GB of ram to run Photoshop. It's a helluva bang for the buck. Cost me next to nothing and runs PS way faster than most desktops can.