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How to overclock the RTX 2080 and RTX 2080Ti

2018-09-21
okay so we talked in our previous review of our TX about the fact that it's a terrible value whether you compare the 2080 to a TI or the TI obviously to a 1080 TI we are going to go ahead and nonetheless do our review coverage as we normally do by moving on to overclocking I mean regardless of the value people have bought these cards all the r-tx cards sold out all the custom cards and AIB cards have sold out on pre-orders so clearly there's people out there we're going to see how much extra power we can squeeze out of these when it comes time to start moving them sliders build from NZXT let's buyers customize their gaming experience based on their desired FPS goals in today's most popular game titles choose a game you want to play set a budget and build will recommend the best parts for your build want to get gaming faster then choose blitz mode and order before 11 a.m. Pacific time in your order will be built tested and shipped same day to learn more about NZXT is build follow the link in the description below so we're gonna cover two cards here obviously the founders Edition cards for the very purpose that if you guys paid attention to the keynote they actually showed a slightly higher clock speed with the founders Edition card than what the reference PCB is which is kind of interesting because the founders is a reference PCB it's just apparently they're allowing it to kind of boost farther than the reference design which is what the AI bees have to kind of follow so we're gonna be doing the founders card and then also the EVGA 20 atti this is the XC ultra it is a reference PCB but of course they're cooling their custom cooling options we got different backplate on here and we've got this almost three slots a 2.75 slot with a massive heatsink on there so this should hopefully handle any sort of thermal overhead issues and I already talked about how the thermal design on the reference car or I'm gonna call it reference it's not referenced technically the founders card was a little disappointing because of the fact that they kind of chose aesthetics over functionality in terms of air flow and so I think that comparing that same board to a custom cooler is going to be something that's important now when we do overclocking here we're gonna use precision x1 this is actually what NVIDIA sent with the review kit for media because precision x1 was developed in conjunction with NVIDIA and so this is this is designed to work specifically with the reference card or the founder's card whatever you want to call it as well as the EVGA card so as you can see right here we've got our GeForce r-tx 2080 Ti let's go and get familiar with the sliders here real quick this is your memory clock now this is the clock that it's currently running at so these numbers that you see up top are real time figures so you can actually see what these are in real time without having to go to the hardware monitor which is the little heartbeat if you're gonna change LEDs and LED colors and stuff you do it here we're not changing in the LEDs we don't care what led stay to care about overclocking so this is where we can monitor our GPU temperature our max temps power limit this is gonna be an important one today a little spoiler as to what is gonna be coming you can add more to it if you want by just left clicking that and you can turn on and off various things voltage limit and maybe that's worth taking a look at we'll see so we added a voltage limit there so the first thing we want to do now with all of our stuff factory so if you're not sure if your factory just click default it will reset everything fan curves temperature target power target clock speed and memory speed and we are going to go ahead and start with the heaven benchmark now this benchmark is a good place to start because one it's free so you need something to test and two it allows us to just sort of start our baseline testing now to get true overclock stability numbers you need to find a frequency that works in all of your titles you might find yourself being a hundred percent stable in one benchmark and then crash immediately in another benchmark or another game so what you're gonna see us do today you want to do for every single one of your games in your titles this is why benchmarking can take hours days or even weeks to find a stable number so we're sitting at 74 C which is there's the 75 we saw 75 as our max in our review through all of our testing it's gonna sit right around 1725 1740 which is still a small overclock that's because we're getting we're hitting power limits yeah we're sitting between 98 to 100 soon as that sits a hunt it hits 100 it drops because it's not allowed to go over 100 so we can make the clock go higher without touching even the clock slider by simply allowing more power to be drawn if we moved it all the way to the right and we have a hit apply yet we're allowing it to pool one hundred and twenty three percent or twenty three additional percent or twenty three percent additional powers allowed to be pulled so you can see by raising the power limit to one twenty three which is kind of funny because that's actually farther than the reference spec calls for apparel I think 112 is what the reference spec sheet calls for but in videos shipping them at one twenty three so it's almost like in videos not playing fair with their own AI bees and competing with them which kind of sucks why send the spec sheet and then ship these cards oh that's right factory overclocked right anyway but I digress whatever stupid launches time our clock speed is still at zero so you can see our temps climbed because we're allowing it to pull more power and the fan curve still is kind of capping out at 59 this is the factory fan curve so we need to change the fan curve we need to change the voltage and all that stuff let's talk about the voltage real quick this is the part a lot of people don't understand so keep an eye on the number right here see how it says 1000 millivolts or one volt nine eight one or nine point eight one millivolts or 0.98 one millivolts whatever if we move that all the way to the right it says 100 but watch when I hit apply it's not applying 100 millivolts see how that stayed the same that stayed the same because what that slider represents is a percentage of available Headroom so the voltage curve actually allows for extra voltage to be called for when needed at factory that's just saying zero zero percent over volt allowance so it's not allowing it to pull more voltage until you move that slider so if we set it to 20 that may allow it to over volt by 20 percent when needed by sending to a hundred percent you're allowing it to take all of the available extra voltage that it sees so that curve doesn't usually change too much and sometimes moving that all the way to the right can mean a non stable overclock or an unstable overclock because it's now seeing more voltage and at once and that's where ASIC quality comes in that's a whole nother video I've talked about it in the past but in the in testing right now with r-tx it hasn't made much of a difference in my testing now if you look over here you'll see we have even touched the core clock yet but because we allowed more power limit we see a higher temperature which is expected because the fan curb hasn't changed NVIDIA doesn't allow it to go past 61% fan speed and our core voltage or our core clock has not changed so the first thing we're going to do here is we're just gonna crank the fans be because when you're asking it to overclock you better be concerned with you know temperatures over noise and obviously with this being a not the most optimized air cooler we're seeing hotter temps and I would like I'd love to see this much lower but you notice how our core speeds started to come up just ever so slightly because as this comes down that's gonna go up right GPU boost it's the the algorithm of temperature versus power versus overhead now let's go ahead and overclock our GPU just +100 that's an actual number we're applying so we're adding one hundred megahertz to that but again you're gonna see this fluctuate around even though it was at 1845 and I said plus 100 it only gave us like eighty of it or maybe seventy-five of it because we're still hitting power limit so you can see how the power draw on this card is significantly affecting our overclocking experience so I'm gonna go ahead and make this plus one fifty and so if we're adding an extra 50 we should see that go to at least nineteen fifty and we're getting the full 50 which is kind of nice but again it depends on the scene so as the scene starts to ask for more you know calculations of the GPU each scene on heaviness testing a different thing as this hits 123 that will drop back down when this goes below that that will come back up so these are directly related to each other and in fact you can even see it here in the hardware monitor because we have power limits set right here look at all the time we spent at 1:1 means we're currently power limited so there we are sitting at one right now and these dips right here are usually seen changes where it goes in between you can also see we have hid voltage limit a couple of times and that's because we move that slider so our temp limit we never hit temp limit because again we never hit the number that represented right here which is 8888 see is where we're allowing it to go max temperature we're sitting at 68 now with a 150 overclock so in all my testing I think plus 200 about as far as we'll be able to get here this gets us just over 2000 megahertz 2025 which is a pretty decent overclock temperatures are definitely within check or within you know they're within check yeah that's the right turn my thing yeah so now we know what the founders card is capable of let's go ahead and throw a reference PCB with a custom cooler design on there and see what kind of results we get so the EVGA card is now installed pitstop style there it is right there on our test bench with its pretty green lights of course the RGB and stuff is controllable but that's besides the point here as you can see our core clock is actually bouncing around quite a bit but once again we're still hitting that same power limit voltage look at the temperatures though 65 see and that's about as hot as it's gonna get when everything is set to defaults but let's see what happens here when I move the slider so they've got a one hundred and thirty percent available to this Republic we're calling thirty percent extra power to be delivered to the core and all the other components look how far that went by just moving that slider so that's already farther than the founder's card went but of course the temperature is going to go up too so now we want to go ahead and come in here and crank these fans so we're gonna go head and move this voltage slider up just like before that way we can allow it to pull all the voltage it needs slew this we're sitting in the 1900s 1920 megahertz over 4000 CUDA cores I keep saying over 4,000 cuz I can over the exact number I'm a terrible reviewer I know between these temperatures though overclock sitting at 63 64 C so let's go ahead and do a plus 100 on there and see it we get just shy of 2,000 we can actually move our memory too let's go 750 on that we're currently getting in 1440p 260 FPS in heaven so this is definitely doing well with the over clocks and the temps continue to come down one thing to keep in mind and why water-cooled cards will typically give you a little bit extra Headroom with the same BIOS and stuff is because the fans are using voltage - this is a TDP or total as is the total package this is the entire card as a whole not just the GPU so when fans go to 100% it uses a little bit of that as well because they're using more amps to turn the fan it's a very miniscule amount but it's still enough to affect our Max Headroom if we are hitting power limit everything pulling power on this card is now affecting the total core clock that were able to get so let's try pulling down the voltage limit and see what I'm go all way back to zero see if we crash we didn't crash power lemon and course beat is still bouncing around just the same so there's your definite proof that we're hitting power limit watch what happens when I changed the core clock this will spike and come right back again because of that and if we look at our see there's our words just still sitting at power limit so power is what's limiting our max clock not the core speed so you hit 2100 for just a second and then the voltage drops the core clock starts to drop and that's again specifically because of the fact that we're hitting power limit my try 200 and see if this crashes nope we're sitting at 20 85 now you know we got to do now okay just crashed so we're gonna pull the clock back just a little bit and we need to now run some fire strike and see if we can't get on the leaderboard so when I did the original benchmark you guys saw in the review where I put the XC up there as well our score was a 13,000 956 that was the graphics score and that was running on the driver for 11.5 won which was the media driver we're currently running for 11.6 3 and like I said our score is a 13 9 5 6 we just got a graphic score 15,000 350 14 8 to 8 was our combined score so if we see where that gets us in Hall of Fame oh there we are out there number 15 Danny I was hoping to get up there with the Titan V guys but anyway you know look someone else is out there benchmarking their 2080 ti as we speak haha I beat you so here's kington score right there with his 20 atti that's ok though because if we go ahead and move over to time spy extreme and then we do the 2 card option spoiler alert in our next video who's number 1 baby so that's for our next video but as you guys can see the 2080 ti does overclock it doesn't have a huge amount of headroom because power is definitely what's limiting and hopefully once those tensor cores are sitting there doing nothing besides scratching their ass we can actually see what's gonna happen in the future 3d mark is gonna be updating for a rate racing benchmark apparently so there is that alright guys thanks for watching tell me what you thought of the overclocking ability of these cards and as always we will see you in the next one [Laughter] okay all right
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