RTX 2080 Super GDDR6 memory overclocking

Discussion in 'Gaming (Software and Graphics Cards)' started by tps3443, Jun 13, 2020.

  1. tps3443

    tps3443 Notebook Deity

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    Just wanted to share this with anyone overclocking Turing video cards. The GDDR6 is extremely sensitive to temperature.

    I have noticed with my 2080 Super bench marking this GPU with +1,400 or +1,500 memory is fairly easy. While gaming will crash with memory OC to high, and you must run around 1,100-1,250 depending on the game.

    I’ve noticed that if I can keep my GPU temps in the lower 60’s then +1,500 on the memory is 100% stable.

    I just wanted to share this information.

    The 2080 Supers use 16GBPS Samsung modules. Although the 2080 Super PCB is only certified stable by Nvidia at 15.5GBPS. So the modules are underclocked. So the memory is extremely sensitive to temperature when it is overclocked to extremely high levels.
     
  2. JRE84

    JRE84 Notebook Deity

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    can you please post benchmarks of 0 oc on core and 1500 on memory vs stock....I thought memory overclocking was dangerous and pointless and only newbs do it.
    if you overclock by 1500mhz which can wreck the card as many nbrs fly through laptops and cards for this reason it isn't worthwhile getting 4 extra fps when your over 60

     
    Last edited: Jun 13, 2020
  3. tps3443

    tps3443 Notebook Deity

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    I will gather some data for you. But, keep in mind we are simply overclocking memory that is already under clocked as it is. Also, overclocking this memory provides a 20% boost in available bandwidth.

    see here. He runs OCed memory only in this video. I will do some test with my system too. And I’ll update this.



    If you do everything right, you can get within 8-13% of a stock 2080Ti in 4K.
     
    Last edited: Jun 13, 2020
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  4. tps3443

    tps3443 Notebook Deity

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    @JRE84

    These are very impressive gains! I’m running mine at +1,500 right now. In all honesty, the 2080 Super actually is pretty darn super. It gets very close to a 2080Ti at only 1440P! I watched that video before buying one, and it immediately sold me on the value for $699.

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  5. JRE84

    JRE84 Notebook Deity

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    im mean overclocking core is smart.....memory does not have thermal sensors that im not sure about.. i meant can you show only memory overclocking
     
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  6. tps3443

    tps3443 Notebook Deity

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    The memory doesn’t have thermal sensors, what I meant was that overclocked memory can crash if the card gets to hot. The video I posted is only memory overclocking, his core was at 1,920 which is default boost of a 2080 super. I am going to post my own results today.
     
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  7. JRE84

    JRE84 Notebook Deity

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    that would be awesome bro, as I just just bought a gaming laptop and this would help some people out.
     
  8. jc_denton

    jc_denton BGA? What a shame.

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    Be sure to test scaling in FS:E and TS, that's where you will see best scaling.
     
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  9. JRE84

    JRE84 Notebook Deity

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    yeah Im super excited to see his results and JC do you know if its safe or dangerous to overclock memory on laptops....I heard it was back in the day when everyone was overclocking for crysis and fried their cards....but nowadays u know...I have a gtx 1060 and don't know much about these cards...is 11000 on firestrike any good im getting 12500 for graphics but everyone seems to be getting alot better overclocked scores in 3dmark site. tips pointers nothing risky as this is worth more than my van
     
  10. jc_denton

    jc_denton BGA? What a shame.

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    We don't do anything with the voltage for GDDR5, so temperature and regular degradation is in play. Most you'll likely run into is either ECC or driver crash/artifacts when pushing outside the limit of what the memory on your card can handle. So as long as you have proper contact and cooling, you should be fine.

    Keep the gpu core stock, and try +100-200mhz steps on memory in FS/TS, keep mhz stepping up until you either run into artifacts or score begins to degrade. Sometimes you can hit a memory strap and ECC will kick in, ie. score goes down at 400Mhz, but increases at 500Mhz, so you want to keep track of score/mhz in a notepad or similar. When you find the limit, I'd test it in your games/applications and see whether its stable or needs lowering for stability.
     
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