i7 5820k best O/C you've seen?

krs360

Reputable
Jan 27, 2015
20
0
4,510
Hi all,

I've got my 5820k @ 4.5ghz (45x multi) @ 1.3v - totally stable, I've not attempted to lower the voltage and test further. Idles in the 30s - not seen it go above 60oc. It's on the MSI gaming 7 x99 board.

I was wondering what the best O/C from the 5820 is you've seen or point me in the direction of some results/forum as I'm keen to see what I can get from this.

Thanks :)
 

xDarkxIdealsx

Honorable
Jul 10, 2013
242
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10,710


According to what I've seen what is considered a "good" overclock on a 5820K is 4.5ghz, a "decent/average" is about 4.4ghz, any lower and you've hit a bad silicon lottery. And what would be considered a "very good" OC would be 4.6ghz or so (on air or with an AIO liquid cooler, with a good fully custom water loop i'd say 4.7ghz is possible but any higher than is pushing it) Essentially the extra 2 cores on the 5820K give it a slightly lower average overclock compared to an I7 4820K or 4790K; although the 4790K is typically a little lower than the 4820K due to having internal thermal paste, so i'd say 4.6ghz is a good 4790K limit, whereas the 4820K tops out at 4.8ghz on a good sample. This is why the 5960X has a lower stock speed of 3.0Ghz and doesn't overclock quite as well, typically hitting around 4.4ghz on a "Good" one or 4.5ghz on a very good sample.


(note that these numbers aren't the "extreme" top of the line insane overclocks that people with 5 radiator liquid cooling or phase change using 1.4v nearly burning the chip up for a max overclock etc.. i'm talking about top stable OC where you can still game and surf the web etc.. without it burning up or crashing after a couple hours)
 

Dooley2009

Honorable
Apr 29, 2013
17
0
10,510
UPDATE: I OC my RAM from 2133 Hrz to 2600 Hrz for a performance gain of 5.2%
The orange bar is my old score the green bar is my new score.

Pics posted below.

Here I go.

Current Settings:

Motherboard:
ASRock X99 Extreme 4
BIOS Version 3.4

CPU:
i7 5820K @ 46
Vcore= 1.3 Override / NO offset
CPU Cache @ 37
CPU Cache Voltage= 1.25 Override / NO Offset ( I'm really interested in this one)
CPU Load Line = 50%
CPU Input Voltage @ 1.9 Override / Offset not available
All Other settings are auto / default (I really interested in this one as well)

CPU Related:
Intel Power Savings mode:
C State Enabled with non-retention
C3 OFF (If enabled breaks my OC)
C6 OFF(If enabled breaks my OC)
This is a must for me because I can achieve stable clock under burn with the same results and it de-clocks my CPU and CPU cache ratio when the PC is not being used. Essential to a longer life span.

RAM:
4GB DDR4
Voltage Override 1.35
Frequency 2133 (2600 currently)
CAS Latency14
Delay 14
Precharge 14
Cycle Time (tRAS) 32
Command Rate 2T (I can't change this value >:D)

Graphics:
EVGA GTX 980 SC
Default State
PCI/E 3.0

SSD
Samsung EVO 850
Samsung Magician Software
Performance Mode
RAID 0

Here are my Passmark Score's
Passmark Performance Test 8.0 64 Bit
http://i.imgur.com/4JwCK4C.png
http://i.imgur.com/6FLWuSd.png
RAM Update Below
http://i.imgur.com/PERlIGH.png?1
http://i.imgur.com/S2hsqcu.png?1
http://i.imgur.com/BOJGYKj.png?1
 

lrrelevant

Commendable
Jun 22, 2016
210
0
1,760


What are your CPU temperatures under full load? Preferably Prime95 v. 26.6 or ROG Realbench?
 

Dooley2009

Honorable
Apr 29, 2013
17
0
10,510


I use a Corsair H115i Water Block and the intel burn test at the highest setting and my temps spring to 90C MAX AND that is with my Corsair water cooler jacked to performance on both the pump itself and the 240mm fans. With every day use I top at 48C MAX with the corsair cooler set to "balanced" mode on the fans and pump. Regular "everyday use" for me includes high end video gaming while multitasking the chrome browser (running videos in YouTube), a private TS server, and multiple fan control software's. I also do 4K video editing. My current idle temps as of writing this are at 33C average. Ambient temps vary but the max is 25C or less.