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40th Anniversary Intel - Core i7-8086K - 5.0GHz+

I have had 3 chips, they did cinebench R15 @ 5Ghz before delid with this following settings:

1. Worst one 5Ghz core 4.5Ghz cache 1.232v CPUZ
2. Middle one 5Ghz core 4.5Ghz cache 1.216v CPUZ
3. Best one 5Ghz core 4.7Ghz cache 1.184v CPUZ
 
Don't think seen any post already so anyone who was lucky enough to be picked in the draw will be interested to know that I just received my i7-8086K :-)
DPD international from Netherlands to UK.
Now need to decide what to do with it.....
 
I have had 3 chips, they did cinebench R15 @ 5Ghz before delid with this following settings:

1. Worst one 5Ghz core 4.5Ghz cache 1.232v CPUZ
2. Middle one 5Ghz core 4.5Ghz cache 1.216v CPUZ
3. Best one 5Ghz core 4.7Ghz cache 1.184v CPUZ

Those are really good results, where did you buy them from?
 
Those are really good results, where did you buy them from?
2 from Singapore, one from Japan when I was traveling Asia. Those are just average result I would say, only the 1.184v is slightly above average. I have seen at least a dozen chip go as low as 1.152v-1.136v for cb15 @ 5Ghz
 
I have had 3 chips, they did cinebench R15 @ 5Ghz before delid with this following settings:

1. Worst one 5Ghz core 4.5Ghz cache 1.232v CPUZ
2. Middle one 5Ghz core 4.5Ghz cache 1.216v CPUZ
3. Best one 5Ghz core 4.7Ghz cache 1.184v CPUZ

cinebench barely stresses chips but regardless you seem to have got extremely lucky, 3 top 20% chips there.

The average for 5ghz requires over 1.31v. However you didnt properly stress your chips.

My CL chip cannot even be stable at stock at 1.23 vcore for reference.
 
cinebench barely stresses chips but regardless you seem to have got extremely lucky, 3 top 20% chips there.

The average for 5ghz requires over 1.31v. However you didnt properly stress your chips.

My CL chip cannot even be stable at stock at 1.23 vcore for reference.
Yeah I dont have much to time to bin them by Running Realbench for hours, I bin them by running cb15 and only keep the best one. It is currently running at 5Ghz/5Ghz Core/cache and 3800 15-15-15-35-1T ddr4 daily with 1.248v cpu, 1.456v vdram, 1.216v VCCIO and 1.23v VSA
 
I'm not sure about that. I've had overclocks that are totally stable in stress tests that will fall over after a run or two of cinebench.
I dont do any rendering or content creating, after cinbench I just increase the volt by 2-3 notches and it has been working fine for me (Matlabs + dynare, games, webs). It would probably need less than I currently input but nah, not too bother to drop really.
 
Doop1 when I first got my chip i clocked it to 5ghz at a moderate offset I think the vcore was 1.32v or something like that. I was able to use it for several hours in windows, browsing, playing media etc. ran several cinebench all seemed great.

When I later booted a linux parted rescue usb, it was segfaulting at the kernel load stage, which was odd, the segfault's stopped back at stock clocks. Thats when I learned booting linux is more stressful than a lot of stress tests. I then ran some harder tests in windows which cinebench was breezing through, XTU crashed within a few seconds, realbench crashed on the multitasking benchmark after about 2 minutes. But the system was useable for general desktop usage, cinebench and even a game I played.

I do accept your explanation tho, with it that different software tests hardware in different ways, on my haswell I used to be perfect at all stress tools then it would blue screen when watching video clips etc. On the haswell the cause was that when the chip was switching between idle clocks and turbo clocks the voltage was not high enough for that intermediate stage, the z87 bios offers way more fine control than z370 and I was able to boost the voltage for that intermediate stage and also set the IVC to a high response mode so it increased voltages faster on clock speed changes.

For me cinebench has much lower temps and watt load on the cpu hence I considered it a light test. But I have seen it crash processors like yourself.
 
Got mine all set up now, just wanna ask if i've got a bad/average/good chip its getting 5.3ghz at 1.36v. I've only tested in cinebench so it might need a little more voltage to get game stable yet.

I was planning on delidding but im only getting 75 degrees in cinebench so i might just leave it as it will be less when gaming anyway.
 
1.360v exactly in cpuz during cb15? it's a good one, better than best-out-of-three of mine. Mine needs 1.376v for 5.3Ghz cb15 but my cache is 5Ghz tho.
 
Cool thats good to know, i guess the extra £40 was worth it this time then, i was gonna just chance a 8700k but i got lucky with my last CPU so i figured im due a dog this time so i didnt risk it.

I think im gonna run it at 5.2 day to day use, at 1.28v it runs about 10 degrees cooler, its probably for the best if im not gonna bother delidding this one.
 
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Just bought one of these from an auction site very cheap. The previous owner win it in a competition.

I was originally looking for a 8700k untill reading that these days the good clicking chips are usually binned as 8086K's
 
Yeah thats part of the reason i went for one, i don't mind been part of the silicon lottery but not if they've already taken the best chips out of the pool :)
 
Whats going on with the price of this chip and the 8700K? Online its gone up £25 in the past week, I was expecting a drop in price given the 9-series announcements or they eeking out profitability before the new releases?
 
Raise prices of previous products slightly over a period of time before releasing new products, makes it look like the newer products are not too much more expensive than the previous.

For example 8700k goes from £370 to £400, release chip that replaces it at £420, doesn't look so bad, but that's actually a £50 increase.
 
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