Submission Details

2990 marks with Core i7 8700K @ 5410 MHz
22 Oct 2017
enthusiast League
Valid

Rankings and Points

World Record Rank
Not PKBO's Best XTU Submission
Global 6 Cores CPU Team Power Rank

Images

Hardware Details

Processor

Model Intel Core i7 8700K Coffee Lake-S Cooling Water (Custom) Temperature Load 95.0 °C Cores 5,410 MHz (+46.22%)

Memory

Product G.Skill Trident Z Type 16 MB DDR4 SDRAM Speed @ 2,009 MHz

Videocard

n/a

Motherboard

Model ASUS ROG Maximus X Apex Chipset Z370

Disk

n/a

Power Supply

n/a

Comments

October 22, 2017 at 3:13:19 PM UTC

Very nice CPU!!

October 22, 2017 at 5:37:05 PM UTC

Thx, not bad for retail chip.... ;)

Looks like 5,2 24/7 stabble.

 

But i hope for 5,5 from next one.

October 24, 2017 at 3:18:40 AM UTC

Great chip dude. Is this on chilled water?

Mine seems also stable in 5200 range with less than 1.4v with EK360 but for benching 5250-70 max and some non-heavy loads like superPi only possible up to 5300 no matter of the voltage...it's like hitting the wall after 5250. Not delidded still... :)

October 24, 2017 at 11:28:28 AM UTC

Hi !

 

Delid is needed here :-) iam hitting 100c after delid with this voltage to get it over 5.4, without delid it will be on 125 maybe... (in real it dont let you go there) -- iam using Grizzly Conductonaut on die.. But if you plan to go subzero, dont use it - kryonaut or kingpin blue should be better on subzero.

October 24, 2017 at 11:34:21 AM UTC

Ye, ye for the paste I know...

What are you other setting for 5400 voltages etc. LLC

I hardly hit a wall after 5250 although i can use ring and blc synced to over 5200 reduced it to x51 and even x50 no go.

The other 8700k i have was overclocking the same but bus was much worse not getting over x48@101.5 Cache although was also benching in this 52xx Mhz regions.

 

Edit: Don't think its thermal related as barely exceeding 70* During CB15 and 20 Mhz more are not going to happen even lower multi and higher BLK a hard wall...tried up to 1.47volts:mad:

*read the bold part reverse :)

17e8bdd5_CB15_temps.jpeg

October 24, 2017 at 11:43:51 AM UTC

Higher cache also consumes more Vcore, so stay below 4,8 and you will be able to go higher on CPU -> good for some benches, but not for all - specialy XTU scales with cache but main gain is up to 4,7 i think.. (giving less and less points on higher)

 

For this posted result VCORE is on 1,535 and LLC7 - it can do 5,35 on way lower voltage, so 5.41 is total max for this benchmark on water...

October 24, 2017 at 12:23:15 PM UTC

Will try with reduced cache today evening...hope it helps...but it's very strange behavior even if it consumes Vcore sub 1.4v benches 5260 all i throw...but unfortunately 10-20Mhz higher are BSODing almost instantly even 1.47/8v (tried in small increments) up to them...

October 24, 2017 at 12:34:28 PM UTC

Just delid it, push 1,55 into it a maybe you will see 5,35 on CB :-)

October 24, 2017 at 12:46:53 PM UTC

A straightforward solution:D

In two steps:

1. Delid

2. Push 1.55v with maximum LLC

:cool:

October 26, 2017 at 3:33:30 AM UTC

That sums up enthusiast benching right there.

 

Delid, keep cool, all else fails, keep adding volts.

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