Have you enabled C-States? Your CPU can not go into full turbo if it can't save power on the other cores.E5-2686 v3 QGN8 QS/ES
Intel Xeon E5-2686 v3 QS QGN8 LGA2011-3 18C Compatible with X99 i7-6850K 6950X | eBay
I am getting some crappy real world turbo , much different from what is posted here in Wikipedia and on the cpuid:
List of Intel Xeon microprocessors - Wikipedia
I have not see 3.5ghz at all on all my bench. somehow all the apps are maybe triggering more than 2 cores?
I am thinking it's my particular ver of cpu. There's another 2686 v3 QS/ES, QG7V SR1XD that might do better? if anyone else has this, please post number. thanks.
P.S. The only reason I got this particular one was b/c it went for cheap on ebay bid for only $450 compared to the usual asking price for this cpu currently around 600. but now I guess I am stucked with this same cpu step for the 2nd socket also ;(. well at least I seems to be getting the correct 2.28ghz for using all 18 cores but the low thread core usage turbo bins are crap so far '
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I have this one. It as mid level stepping, one stepping before release. Has worked reliably for years and is a good chip but VT-C is unstable. Other oddity is I see 2.5Ghz turbo with 2 dimms but only 2.3Ghz with 4 in my ASRock X99, do you see the same behaviour?Intel Confidential QHUZ ?E5-2698 V4?
Have no idea what ES is this. It's advertised on ebay as E5-2698 v4 but the one I got only have 2 turbo speed: 23x and 25x with base clock of 2.0ghz. 20 cores 40 threads, so similar in core count to an actual 2698 v4 but the clock speed is not exactly similar. ?very early stepping ES?
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hmm, i have to go back and check again. it's interesting to note that when running cinebench multicore it actually show only like 1.8 or 1.9ghz. and also i think even when runinig cinebench single core, the speed didn't go to 2.3 or 2.5. i only see the 2.3 or 2.5 when it's just sorta of being on light desktop usage or idleing.... it's almost like they deliberately cripple the speed when it needs to be running fast.....I have this one. It as mid level stepping, one stepping before release. Has worked reliably for years and is a good chip but VT-C is unstable. Other oddity is I see 2.5Ghz turbo with 2 dimms but only 2.3Ghz with 4 in my ASRock X99, do you see the same behaviour?
Yeah, this cpu is definitely handicapped....i think it's a little handicapped in multicore but even more so in single core.... cool to see the 20 core and 40 threads all at once for just a single cpu though...lol.. but it's definitely no comparison to the 2696 v3 QS 18 cores i have.