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Broadwell-E also doesn't overclock as well as Haswell-E. While your 5930K hit 4.5 ghz, it will be harder for a 6900K to do so and it also has more cores. I think that's on the high end for 6900k overclocks that I've seen.

Yeah, are you using some type of auto OC or something?

6950x because it still can be overclocked decently as lutjens says. If it can hit 4.2 or 4.3 GHz, it won't be at too much of a real-world disadvantage compared to a 7700k at say 4.8 GHz. How much of a difference would that 0.5 GHz and the small IPC increase matter in a game? I'm guessing not...

Although it would be entertaining... a race to see what happens first. BIOS flash, or computer shutdown?

6900k (8 cores) or 6850k (6 cores). Both should reach 4.4 ghz or higher. Don't get the 6800k, if I remember it only had 28 pcie lanes

2679v4 Single threaded speed and high thread count

Yeah the 6950x is about $170 cheaper ($1580 on pcpartpicker) than it was back at its launch date, making it a slightly better deal, but it's a terrible overclocker. If you have a 5960x already, it's either get the 6950x or keep the 5960X. The 6900K is not worth it at all (it clocks similarly...

This guy is a very effective troll. He's done a good job of working up everyone here - it's clear he's not interested in a productive conversation. Just ban him.

Couldn't agree with you more. Don't know why people keep using it as a benchmark

I've gotten no more than 104 on 2679v4. MSI X99 SLI PLUS, all temps below 60C, so its not for thermal reasons.

I would probably check out servethehome forums, they do a lot of builds with server hardware and cases. They'll probably know what fits the 4U form factor.

What's your budget? You might even consider getting one of the used dual 2670 Dell or Lenovo workstations that are pretty common on eBay. No need to worry about building a system in that case, especially since overclocking is all but impossible with these chips. I would strongly recommend...

The 2686v3 comes into stock from time to time on ebay, either as OEM or QS (pretty much as good as OEM imo). Just keep checking every few days. Its another one of those custom chips made for a particular client. You might also consider Taobao (a chinese auction site) if your chinese is good. The...

You I would recommend getting the 2683v3 or 2686v3 if your jobs benefit from more cores. If i recall correctly the 2683v3 offers 16 cores and the 2686v3 offers 18 cores. You could also get the QS versions. Check eBay.

Can confirm this. The 2679v4 can only go up to 3.3 ghz single core, you can maybe squeak out another 100mhz (so around 3.4 ghz) through BCLK overclocking - my preliminary efforts show you can go up to 104.5 mhz (a 4.5% increase from stock). Not particularly interested in overclocking though...

Do you have your computer set to look for windows updates? High cpu usage is a known bug with Windows 7 update.

It won't matter for some highly optimized codes that already make the full use of a single core (like ones that do scientific calculations). We usually disable it. But for desktops it certainly helps out a lot.

Yep. The enthusiast market is too small for most fan makers to bother, so there few that do serve the community charge higher for doing so. The cancellation of Gentle Typhoons is a great example. Nidec essentially didn't even bother licensing out their fans again after Scythe lost it because...

Depends on the board. Ivy bridge-EP was supposed to be a drop in replacement for SB-EP, but not all boards support it. All it takes is some googling to figure out. I would strongly recommend against getting any ivy bridge-EP ES processors off of eBay. Those have many more compatibility issues...

As a warning this is a server motherboard, and even though I haven't tried it myself, reports from people on various forums suggest that it is lacking when used in a workstation capacity. If you're looking to build a system for computations or rendering, it'll work fine but I wouldn't use it for...

Dual socket workstation mobos from Asus or Supermicro are in the EATX form factor BUT the mounting holes use the EEB pattern, which only a few cases support. If you're looking to buy a case I'd actually recommend the Phanteks Enthoo Pro. I have one myself for a LGA-2011v3 new workstation build...

How about a dual lga 2011 system? You could grab a used workstation case off of Ebay for $300-400. Used e5-2670s are selling for $65 and ddr3 ecc selling for $11 per 8gb stick. Total with drives comes to $800-$850. Fully built systems to save some hassle can found for ~$900-950. With the boost...

Which machine learning packages are you running on the GPUs, or are you writing your own code? The machine learning is a secondary purpose to the scientific calculations, which are running on programs that demand CPU power first and foremost. The first 2679v4 arrived and is working well in a...

Power consumption isn't a major issue but of course I'd like to avoid being blatantly wasteful. Unfortunately, the scientific calculations I'm looking to do (which are done on several existing software packages) don't scale very well across multiple nodes. I suppose could just run multiple...

Hey Forum readers, Since people here seem to be more knowledgable about hardware than most enthusiast forums, as opposed to the typical slew of posts from 15 year olds too lazy to use a search function having difficulty overclocking unlocked CPUs on a "leet pr0 gaming" motherboards, I figured...