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Need Help with increase of Stable OC of CPU and GPU

Looking to increase my OC if possible. Long post.

Im running a
8700k @ 4.7 ghz on all cores. Core voltage 1.245, VCCSA 1.20 VCCIO 1.10 (The XMP numbers were super high so i lowered them to this number I saw on reddit. Worked and doesnt crash now)
3600 DDR4 Gskills tridentz 1.36v
1080ti MSI gaming trio x. +60 mhz core clock and +200mhz memory clock
850w EVGA p2 PSU i think. The platinum one
MSI Krait gaming z370 mobo
H7 Cooler wiuth mx-4 paste
4k LG TV low end one with HDR
Run at 4k

I can't get my CPU to be stable above 4.7 ghz. I have to put the core voltage to really high levels and then it gets super hot and crashes. High 80's for cinebench. I tried getting it to 5 ghz but it took 1.35v+ to even boot and crashed soon before i did much so i lowered it.

My GPU seems to be benchmarking on the low side. It runs at an excellent temp. Custom fan curve enables it to stay below 60C usually at load. It will be stable enough to game at this offset and it runs at 1967 mhz core after boost. I get 8900ish to 9200ish for superposition at 4k. After I used DDU to uninstall drivers in safe mode I breifly got a 9500 score but only once.

I used to use MSI gaming app and afterburner to OC my GPU but I found if i uninstall the gaming app and do the manual OC with afterburner, it goes higher clock speed even if it can only handle 60 mhz instead of 75 offset.

I have power limit set to 110% and Temp set to 88. I never reach close to the temp limit but riva tuner says the power goes to 105%ish or more often in heavy hitters like shadow of war at 4k.

I see lots of people easily hitting 4.9 ghz on their 8700k or more online at similar voltages to mine, and 2050ish or more on their GPU with similar cards.

I get 55-80 FPS at 4k with mostly maxed settings in destiny 2 and battlefront 2. With a few rare dips into the 40's with massive action scenes with 40 people making things explode every where at once. Id like to squeeze every bit of juice out of this card as I paid an arm and a leg for it. I see many with 10k superposition scores or at least consistent 9.5k ones. Anything I can do to increase my overclock?

I've never tested memory for stability or ran prime 95. My CPU seems to run a little hot but i reseated the cooler and its similar even with bettter paste.
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  1. Best answer
    Can it run 4.8 or 4.9Ghz on all cores with 1.350Vcore?

    If not... Well then I am sorry but it seems you have lost the silicone lottery.

    Even if you see many others hitting 4.9Ghz and higher. Does not mean you can do it. All depends... again.. on the silicone lottery.

    Same goes for your GPU.
  2. I didn't try at 1.35 on vcore for those speeds. Seemed high. I stopped at 1.31 or something at 4.8 ghz and 4.9.What temps should I stop the benchmarks or gaming at for my CPU if I try that?

    Im getting 60-70C gaming at current speed and voltages gaming. Ill try to run a cinebench at 4.8 at 1.35 and see what I get
  3. Max temp for the 8700k is 100°C.
    But do not let it get there of.

    I would say that if you stay under 80°C you are safe in the long run.

    Your CPU cooler.. you say H7... I would say you are pushing it with an Cryorig H7 with the 8700k.
    You should look into getting a better cooler maybe.


    And yes. 1.350Vcore is what I would call max when it comes to aircooling.
  4. Got way too hot at 4.8. Did 1.33 and the bench didnt crash but it was in te 90s. not doing that again with this cooler. Ill look into a better cooler when I have money. In debt due to my 1080ti for a little bit. Works fine for now, just wanted to know if it was possible to squeeze more FPS out of this machine. Thanks for the help man.
  5. For gaming, you get more FPS by overclocking the 1080Ti than the 8700k.

    Games overall are more GPU bound than CPU bound.


    Today the 8700k can handle all games at any resoultion and detail setting without any kind of problems if you run it at stock settings.
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