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post #41 of 133
Well, the LGA 2011-3 page at SL is all neatly arranged in a 4 x 3 for the 4.2, 4.3, and 4.4GHz positions. Running into a 4.5 or 4.6 is just going to make a mess of it. smile.gif

Here's hoping you run into a couple more 4.6GHz 6850K's.
post #42 of 133
Quote:
Originally Posted by stargate125645 View Post

Who is doing 4.7GHz on air on a 6-core Haswell-E? I keep seeing that mentioned but I find it hard to believe. I hit 4.6GHz with just 1.23V, but even the Noctua NH-D15S has issues keeping it in the 70s during long stress tests like with Realbench. Granted the computer is upstairs where room temperature can hit 26.5C for me, but I wouldn't think that would kill my OC temperatures such that I couldn't hit 4.7.

If Broadwell-E can hit 4.5GHz and has a 5% IPC improvement, that is slightly better than a 4.7GHz Haswell-E. It seems to me it wouldn't be worth an upgrade for someone getting 4.6GHz and above on Haswell-E unless they really feel their memory will perform better with Broadwell-E. The other question I would have is whether the strap will affect memory frequencies on BW-E like it does with HW-E. Given the early performances in reviews of BW-E, though, if you were to get one then binning is the way to go.

My 5930k will do 4.7v on my custom loop, but temps were higher than I was comfortable with...

I doubt you could find an air cooler large enough to keep one at a reasonable temp above 1.25-1.30v.
post #43 of 133
Quote:
Originally Posted by whitrzac View Post

Quote:
Originally Posted by stargate125645 View Post

Who is doing 4.7GHz on air on a 6-core Haswell-E? I keep seeing that mentioned but I find it hard to believe. I hit 4.6GHz with just 1.23V, but even the Noctua NH-D15S has issues keeping it in the 70s during long stress tests like with Realbench. Granted the computer is upstairs where room temperature can hit 26.5C for me, but I wouldn't think that would kill my OC temperatures such that I couldn't hit 4.7.

If Broadwell-E can hit 4.5GHz and has a 5% IPC improvement, that is slightly better than a 4.7GHz Haswell-E. It seems to me it wouldn't be worth an upgrade for someone getting 4.6GHz and above on Haswell-E unless they really feel their memory will perform better with Broadwell-E. The other question I would have is whether the strap will affect memory frequencies on BW-E like it does with HW-E. Given the early performances in reviews of BW-E, though, if you were to get one then binning is the way to go.

My 5930k will do 4.7v on my custom loop, but temps were higher than I was comfortable with...

I doubt you could find an air cooler large enough to keep one at a reasonable temp above 1.25-1.30v.
OK. I wish people would be more explicit then instead of make blanket statements. I was thinking I had super high temperatures, but I apparently do not for an air cooler and 4.6GHz.
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post #44 of 133
Quote:
Originally Posted by stargate125645 View Post

OK. I wish people would be more explicit then instead of make blanket statements. I was thinking I had super high temperatures, but I apparently do not for an air cooler and 4.6GHz.

At 4.7ghz and 1.3ish vcore I would hit 80*c in prime95 small ffts after a few min. Normal benchmarks it would run low 70s.

With the haswell E line, overclock for temp. Increase clock/voltage until you hit a max of 80*c or it stops going faster.
post #45 of 133
Quote:
Originally Posted by Silicon Lottery View Post

I can't go much higher with our H105s we use for testing, those 10 cores push out a ton of heat. You might be able to go a tad higher with a custom loop. Motherboard choice has little to no effect from what I've seen on all of Haswell/Broadwell (as long as it's not a $70 motherboard).

We saw some 4.5/4.6 on the 6850Ks, but everything else has capped at 4.4. Either Intel is binning the premium 6 core better this time, or it was just extremely good luck. Of course the more cores you start adding, the more difficult it is for all of the cores to clock higher. It's easier to find 6 good cores together rather than 10.


Have you gotten to your "end of week 6800K mass-checking" yet? Are you uncovering ANY 4.5ghz 6800K at all? Haven't seen any on the site. I have a custom water loop with a 480mm rad, a 420mm rad, and a 360mm rad with an EK Supremacy EVO CPU block and MCP655 pump. And i just ordered some of the new Cool Laboratory Liquid Copper TIM so my temps should be fairly better than with the H105 you guys use i assume.

Do you think that on a setup like mine that your i7 6800K "4.4ghz @ 1.344v (or less)" binned chips would be able to push 4.5ghz at a safe voltage? Hoping for 1.35v or less, 1.375v mid-tier hopes, and would probably still be "ok" with anything under 1.4v since you said earlier 1.4v shouldn't show degredation of lifespan much.

I'm wanting to hold off on pulling the trigger till i can see if you guys pull a 4.5ghz (what is the typical "voltage" bin you guys do for 4.5? I mean like how all of your 4.2 chips say 1.312v, all the 4.3's say 1.328v, and all 4.4 say 1.344v (or less) etc..) but at the same time don't want to wait too long and you guys sell out of 4.4 and never get any 4.5 lol.



Sorry for all the questions, just trying to discern what the best option is. Part of me wants to save money and just risk it with a ~$420 boxed 6800K from retail, but i'm an OC freak and since i'm selling my i7 5960X that i got for video rendering + gaming hybrid that i could get to 4.5ghz + 4.2ghz cache @ 1.28v i want to get a 6800K that will be as close in multi-thread performance as possible to a stock 5960X so i won't "miss" the 8 cores as much if you see what i mean lol.
 
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post #46 of 133
Thread Starter 
Quote:
Originally Posted by DarkIdeals View Post

Have you gotten to your "end of week 6800K mass-checking" yet? Are you uncovering ANY 4.5ghz 6800K at all? Haven't seen any on the site. I have a custom water loop with a 480mm rad, a 420mm rad, and a 360mm rad with an EK Supremacy EVO CPU block and MCP655 pump. And i just ordered some of the new Cool Laboratory Liquid Copper TIM so my temps should be fairly better than with the H105 you guys use i assume.

Do you think that on a setup like mine that your i7 6800K "4.4ghz @ 1.344v (or less)" binned chips would be able to push 4.5ghz at a safe voltage? Hoping for 1.35v or less, 1.375v mid-tier hopes, and would probably still be "ok" with anything under 1.4v since you said earlier 1.4v shouldn't show degredation of lifespan much.

I'm wanting to hold off on pulling the trigger till i can see if you guys pull a 4.5ghz (what is the typical "voltage" bin you guys do for 4.5? I mean like how all of your 4.2 chips say 1.312v, all the 4.3's say 1.328v, and all 4.4 say 1.344v (or less) etc..) but at the same time don't want to wait too long and you guys sell out of 4.4 and never get any 4.5 lol.



Sorry for all the questions, just trying to discern what the best option is. Part of me wants to save money and just risk it with a ~$420 boxed 6800K from retail, but i'm an OC freak and since i'm selling my i7 5960X that i got for video rendering + gaming hybrid that i could get to 4.5ghz + 4.2ghz cache @ 1.28v i want to get a 6800K that will be as close in multi-thread performance as possible to a stock 5960X so i won't "miss" the 8 cores as much if you see what i mean lol.

Yes we finished our 6800Ks yesterday, and no, there were no 4.5s. You're going to have to push the voltage to 1.375V-1.45V(+) to have a chance of 4.5GHz realbench on our 4.4 bin. None passed at 1.36V/4.5. I don't think we'll have problems keeping the 4.4 bin in stock, so no worries there.
post #47 of 133
Quote:
Originally Posted by Silicon Lottery View Post

Yes we finished our 6800Ks yesterday, and no, there were no 4.5s. You're going to have to push the voltage to 1.375V-1.45V(+) to have a chance of 4.5GHz realbench on our 4.4 bin. None passed at 1.36V/4.5. I don't think we'll have problems keeping the 4.4 bin in stock, so no worries there.

Thanks for the reply!

Even on a custom loop with my rad setup you think that much voltage would really be required? I don't really do realbench specifically, i mostly care about gaming and video editing/rendering stability which i assume could reach realbench stress levels. I figured that in the case of your 4.4 bin 1.344v (or lower) one that on my setup i might be able to get the 4.4ghz down to maybe 1.3v - 1.32v range due to having a much larger rad space with the 480/420/360 rads (might get another 240-360 rad but i'm probably at the diminishing returns point so it probably wouldn't help much) I guess maybe it's just my optimism hitting or something but the fact that your bins for 4.4 ALL say "1.344 or lower" for every chip model, makes me think that the 1.344v is just a placeholder voltage and your actual voltages might have been better or something? Basically i'm just looking for the best 6800K i can find. Was hoping for 4.5ghz at a "safe" for often use voltage.

And do you have a source for statistics on percentage of 6800K, 6850K etc.. that hit 4.2/4.3/4.4 etc.. like you posted on the 4.4ghz 6950X page? (where it says "only top 20% of 6950X hit 4.4ghz or more" etc..)
Edited by DarkIdeals - 6/21/16 at 4:05am
 
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post #48 of 133
Just wondering, when will you guys start bringing in some more 6850K's? Extremely keen on a 4.5Ghz 6850K and would buy it within a heart beat biggrin.gif
post #49 of 133
So 6900Ks next, or 6850s?
post #50 of 133
Thread Starter 
Quote:
Originally Posted by DarkIdeals View Post

Thanks for the reply!

Even on a custom loop with my rad setup you think that much voltage would really be required? I don't really do realbench specifically, i mostly care about gaming and video editing/rendering stability which i assume could reach realbench stress levels. I figured that in the case of your 4.4 bin 1.344v (or lower) one that on my setup i might be able to get the 4.4ghz down to maybe 1.3v - 1.32v range due to having a much larger rad space with the 480/420/360 rads (might get another 240-360 rad but i'm probably at the diminishing returns point so it probably wouldn't help much) I guess maybe it's just my optimism hitting or something but the fact that your bins for 4.4 ALL say "1.344 or lower" for every chip model, makes me think that the 1.344v is just a placeholder voltage and your actual voltages might have been better or something? Basically i'm just looking for the best 6800K i can find. Was hoping for 4.5ghz at a "safe" for often use voltage.

And do you have a source for statistics on percentage of 6800K, 6850K etc.. that hit 4.2/4.3/4.4 etc.. like you posted on the 4.4ghz 6950X page? (where it says "only top 20% of 6950X hit 4.4ghz or more" etc..)

I haven't had the chance yet to put Broadwell-E under some rad space, but if it's anything like Haswell-E there's not going to be much of a difference in regards to how much frequency you get out of a voltage. Haswell/Broadwell don't scale with cold quite as well as Skylake does. More rad space will allow you to push up voltage a little further though.

Statistics will go up later today.

Quote:
Originally Posted by DeeJay View Post

Just wondering, when will you guys start bringing in some more 6850K's? Extremely keen on a 4.5Ghz 6850K and would buy it within a heart beat biggrin.gif

Quote:
Originally Posted by Pyrolol View Post

So 6900Ks next, or 6850s?

6850Ks next, should start on Thursday. Sorry to keep you 6850K folks waiting, but here's hoping I have just as much luck as last time!
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