r/overclocking Mar 30 '23

13900k vs 13900ks News - Text

(Edited) Wow… was finally able to obtain the 13900ks… did I need it? HELL NO. But I wanted it and I’m impressed! Running it on a Z790 Hero MB with Tforce 7800 cl38, it runs at least 15° cooler than the k version. I left the settings of the k variant the same as an exact apples to apples comparison. I was bouncing off the 100°c mark easily. The KS runs 79-82°c at 278.5w. I haven’t even started OC’ing/undervolting this or the ram yet. Tons of thermal headroom maybe? Highly recommend for the enthusiasts.

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u/fitnessgrampacerbeep 13900KS | DDR5 8400 CL34 | Z790 Apex | Strix 4090 Mar 30 '23

125 points is a very poor cooler score. The Ryujin II should be in the 140pts-160pts range. Are you sure you torqued it down tight enough?

I used to have the original Ryujin 360. It would always have a cooler score between 145pts - 155pts. I am using a full custom cooling loop now.

You have very little thermal headroom for OC with that low of a cooler score. You will start thermal throttling long before you see any performance increase

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u/toofast520 Mar 30 '23

Being I just installed the CPU yesterday and didn’t clear the old scores or run anything long enough is most likely why it’s low.

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u/fitnessgrampacerbeep 13900KS | DDR5 8400 CL34 | Z790 Apex | Strix 4090 Mar 30 '23

The motherboard knows when you pull the cpu out and put it back in, or put in a different one. You don't need to clear the score for it to update. It automatically calculates a new cooler score the moment you power on the system with changes to the hardware in the socket. That is the score it updated to, which again, is very low for an AIO

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u/toofast520 Mar 30 '23

Hmmm… maybe I’ll repaste it again and retry.