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[Official] - X58 Xeon Club - - Page 883

Poll Results: How many years have you owned your X58 - Tylersburg platofrm?

 
  • 10% (49)
    More than 1 year
  • 5% (24)
    More than 2 years
  • 8% (41)
    More than 3 years
  • 11% (53)
    More than 4 years
  • 23% (113)
    More than 5 years
  • 41% (200)
    More than 6 years
480 Total Votes  
post #8821 of 12899
Quote:
Originally Posted by Gdourado View Post

How much better is the IPC and single core performance of the 2500k vs the x5660?

Stock vs stock clocks, the 2500K is significantly faster single threaded. You have to overclock the x5660 to at least 4.4GHz to match it.

https://browser.primatelabs.com/processor-benchmarks
https://www.cpubenchmark.net/singleThread.html

How much is the 2500K bundle? The X5660 goes for $70-$90 on ebay.
post #8822 of 12899
Quote:
Originally Posted by Gdourado View Post

How much better is the IPC and single core performance of the 2500k vs the x5660?
The 2500K is has about 5-8% better single core performance at the same frequency, though sandy can also normally oc better so when both are overclocked the 2500K will gain even more of a lead over westmere. In multi core applications the X5660 will ruthlessly crush the 2500K though.
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post #8823 of 12899
5-10% in real applications, 10-15% in synthetic benches, and of course a 2X increase in GFLOPS as measured with LIMPACK because of the added AVX 256-bit instruction extensions. Though it looks like very few commercial software products make use of said AVX extensions, which is a real pity, to be honest. Other than that, it's better overclockability with slightly lower votages and a better memory controller. That said, as far as I know, Sandy Bridge is still quite picky about RAM, well at least the 3930K is said to be, not sure about the 2500K.

Check out the Anandtech CPU benchmark results, they don't have the X5650 I think, but you can select eh 990X or 980X as rough equivalents of the 3930K - near identical clocks, and an identical core count.

Also, be sure to read the Anandtech Generational IPC INcrease article! It's an in-depth study of Intel CPU IPC advances from Nehalem to Skylake.
post #8824 of 12899
Quote:
Originally Posted by DRKreiger View Post

Good speeds. I am more impressed with the AWESOME latencies!!! very strong. I can almost get to 47ns on the memory. 2.3, and 12.7 are great speeds.

Thank you mate!! Well I think this is not the limit honestly, but I'm afraid to damage the RAM, it's so nice it's hard to believe at times. The pricing is enthusiast, mind you, not Classified level! I read a review by a Russian guy on a local shop's website, right where I bought mine a few weeks later, and it was the review that convinced me to go for it. No regrets since then!

Re mine vs yours, well those are LP's, maybe they're slightly less potent? Just a wild guess you know, they operate on less voltage. But do overclock the CPU like I did, maybe it will help?

Oh, and I set the tFAW quite low as well, by your advice, think it was 124 or whatever the preset was, the P6T SE won't let me key the value in directly, it uses a dropdown list, as opposed to the EVGA SLI3.
post #8825 of 12899
Quote:
Originally Posted by heb1001 View Post

What kind of crashes?

If the machine spontaneously reboots it could be that you are near the limit of the PSU and running the GPU puts you over the limit so the PSU cuts out.

If it's just locking up it could be the QPI too fast or not enough volts. Or unstable GPU overclock but you said it's not overclocked much.

If it's crashing out without locking up it could be an unstable gpu/cpu/dram/uncore overclock.

Obviously, it could be anything but these are the kinds of crashes I've typically experienced. My overclocking strategy is interval bisection so I got to see a lot of instability.

Usually I think screen freezes and sounds get stuck.
Yesterday screen went black, then some new message popped "graphics routinies not working" or something, 30sec later it restarted itself.

Today I put gpu to defaults 24/7 and see if it still crashes, think I have tried that before and it still did but gonna try again.
So should I try lower QPI then maybe? Its on "auto" if I remember right.
post #8826 of 12899
Hey guys i posted awhile back for the xeon mod for an evga x58 sli le board and got it all working out went crazy and bought another gtx 970 for about 180$ just couldn't resist and performance went up like crazy aswell as my 3dmark score but my stable overclock of 4.35 with HT on became unstable right after the second card was added and right now i could only get 4.2with HT on stable... any tips?

I am attaching the scores and let me know if you think i can squeeze to 19 or 20k


post #8827 of 12899
Quote:
Originally Posted by Vipu View Post

Usually I think screen freezes and sounds get stuck.
Yesterday screen went black, then some new message popped "graphics routinies not working" or something, 30sec later it restarted itself.

Today I put gpu to defaults 24/7 and see if it still crashes, think I have tried that before and it still did but gonna try again.
So should I try lower QPI then maybe? Its on "auto" if I remember right.

It does sound like your problem is IO related so maybe QPI but TBH you should probably just start again with your overclocking.

If you want a stable system you need to change one variable at a time and do a stability test every time which includes the applications you actually care about being stable.

If you do this you will never get into the situation where you don't know what caused the instability. If it's unstable you'll know the cause was the thing you last changed.

So you should back off everything to a point where you think it will be stable then test that to make absolutely sure it really is stable then move forwards more carefully from there testing every time you make a change.
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post #8828 of 12899
Quote:
Originally Posted by darkev View Post

Hey guys i posted awhile back for the xeon mod for an evga x58 sli le board and got it all working out went crazy and bought another gtx 970 for about 180$ just couldn't resist and performance went up like crazy aswell as my 3dmark score but my stable overclock of 4.35 with HT on became unstable right after the second card was added and right now i could only get 4.2with HT on stable... any tips?

I am attaching the scores and let me know if you think i can squeeze to 19 or 20k




On EVGA X58 motherboards with two GTX9xx series cards, you may have to increase the "Low Memory Gap" setting in the BIOS
This setting should be under Frequency/Voltage Control > Memory. Set this to 3G and it may help your issue.
post #8829 of 12899
Quote:
Originally Posted by xxpenguinxx View Post

Stock vs stock clocks, the 2500K is significantly faster single threaded. You have to overclock the x5660 to at least 4.4GHz to match it.

https://browser.primatelabs.com/processor-benchmarks
https://www.cpubenchmark.net/singleThread.html

How much is the 2500K bundle? The X5660 goes for $70-$90 on ebay.

I'm from Portugal.
Buying from the eu, with shipping, a x5660 is close to 100 euros.
A z68 board with 8gb of ram and a 2500k is 200.
post #8830 of 12899
Quote:
Originally Posted by xxpenguinxx View Post

Stock vs stock clocks, the 2500K is significantly faster single threaded. You have to overclock the x5660 to at least 4.4GHz to match it.

https://browser.primatelabs.com/processor-benchmarks
https://www.cpubenchmark.net/singleThread.html

How much is the 2500K bundle? The X5660 goes for $70-$90 on ebay.

I wouldn't trust those benchmarks. 3570k has better single thread performance than a 1650 v4? No. Cinebench would give a more accurate idea.

Anyway, westmere to sandy has around a 10% IPC advantage best case and less in games.

An advantage to sandy is that it will likely overclock further, but honestly I think a six core is a more future proof investment. The only quad I would consider at this point is a 6700k if I was looking purely for IPC.
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