Gadgetory

our tight necks pascal hybrid project is complete so that's what this is here now with a liquid cooler attached to it and the blower fan and the results are actually pretty interesting this shows the biggest change out of all the hybrid cards we've built so far including the ten eighty four eighty and ten sixty this one actually the results very directly impact performance clock rates and things like that and the conclusion is basically that the cooler on here is not adequate for for what we were doing and we'll talk about that in the moment this coverage is brought to you by I by power and the new elements in gaming pc which has the arc LED fans a full tempered glass side window and under glow if you want to have neons like in Need for Speed Underground 2 so the hybrid card pretty interesting stuff we catalogued chronolog the last build process in the last couple videos you can see how we tore it down built it up and today we're looking at the results the methodology is in the article linked in the description below you can also find more depth there if you're curious and a quick shout out to Sam thank you for loaning us this card because Nvidia did not sample this one to us though they sampled the rest of the cards recently during our endurance test we plotted the Titan X P with its stock cooler as throttling at 84 Celsius every hit 284 C caused an immediate drop in clock rate and the clock rate got stuck around 15 44 megahertz but sometimes would spike to 1670 or drop as long as the 1400 the spec calls for a fifteen thirty one megahertz boost on paper and the chart makes it pretty clear that our clock rate is spiking hard and as a result of the thermal it's not the power limit in this instance but it's still within spec we occasionally spiked to 85 or 86 Celsius but the card mostly throttles hard to keep itself at 83 Celsius here's a look at some raw data to see what's going on you can see that the clock has a range around 100 megahertz top to bottom which doubly presents itself and 0.1% low values if you happen to hit a spike during workloads putting that into perspective the original chart plots us at hovering around the 15 100 megahertz to 1580 megahertz range kind of averaged with an 84 C temperature with our hybrid mod we brought the Titan X Pascal up to nearly 18 100 megahertz that's the absolutely no overclock at all on average we're moving 15:31 megahertz or thereabouts on the stock cooler to an average of about 1784 megahertz with the liquid cooler we've improved the clock rate of the stock card by more than 200 megahertz just by fixing its air cooler and this next parts even better the only reason we're still seeing that spiky frequency plot is because the card is now choking on power rather than thermals it's almost funny in that way we've resolved the thermal constraint and are now hitting power constraints which can be somewhat resolved and tested simply by increasing the power limit of the card you don't even have to overclock it so that would resolve this and flatten the clock rate even a little bit more here's an updated look at the peak average temperatures we're down to a delta T versus ambient value of nineteen point eight five Celsius from fifty nine point four Celsius or a reduction of forty c for the load temperature idle temperatures are a little lower than a ten eighty and that's for a few reasons it actually does make sense despite maybe being confusing at first because this is a higher TDP chip the main one is that the die size is 471 millimeters squared on the GP 102 Titan the X whereas GP 104 is 314 that millimeters squared this extra surface area helps dissipate heat and that's mostly noticeable when it's idle because not doing anything obviously but the improved air cooler for the air tests and our improved implementation of liquid for the hybrid tests also contributes to the lower idle temperature across the board than the 1080 and part of that is keeping the base plate this time which helps drive down thermals across the card we were able to overclock higher end with a greater sustained average clock rate than before thanks to the improved thermal solution still the Titan XP chokes hard on power availability and is demonstrated by the fact that increasing the memory clock beyond 450 megahertz will actually decrease fps and that's because power is being eaten away from the core we actually gained more fps by dropping the memory overclocked from its actually stable 600 megahertz offset value to a four 50 megahertz value that we settled with for the original non-modified card that seems to be the point beyond which Domitian returns come into play so once you've passed that 450 mark on this particular card there are diminishing returns in so far as the framerate will actually decrease and that's again because core frequency goes down regardless our over stepping is on the screen now we landed at 2012 megahertz peak that's the very highest or about 1974 megahertz arresting clock with the hybrid card the stock card by comparison with a loud and high rpm fan was getting stuck at about 175 megahertz core offset for a total of 1987 megahertz Peak or 1911 megahertz average we've managed to decrease thermals and noise and increase the overclock by about 63 megahertz it's not a huge OC but there's more to it than just numbers we've also got a look at stability and now that the thermals are not throttling on the card it's down to just the power limit as for FPS differences we see a change of less than 3% in shadow of mordor at 1080p and 4k moving from 91 FPS average to 93 FPS average but the 0.1% low values have been improved from 62 to 71 FPS as a result of the more stable clock rate that's not super noticeable to the gamer at this level of performance anyway but it is cool to see our methodology picking up the clock rate instability of actually showing where it shines to measure those low values well looking at GTA 5 what we see a performance swing of nearly 4% and the average is at 4k 1080p doesn't really show any real change but the 0.1% lows are marginally improved again imperceptibly but measurably Mirror's Edge catalyst posts the biggest swings with a change of about 5% at 1440p and about 6% at 4k high so not massive but overall the performance of the card has certainly increased and part of that is just a better overclock and most of it is the better clock rate stability so that is the Titan XP hybrid project really cool results on this one just to kind of see how it performs and Vidya I think should have used a better cooler weather that's liquid maybe by kind of the stock configuration would would make sense for a $1200 video card if they're trying to make it so that it's more compatible with a wider range of cases as FF and all that then just a better air cooler would make sense because this is very obviously throttling even in its stock configuration so pre OC we're changing the clock rate by something like 100 to 200 megahertz just by changing the cooler that's because this thing when it's under Auto control for the fan is hitting 80 485 Celsius now if you were to configure the fan manually to something like a hundred percent speed and under the extra noise then you would resolve some of these thermal issues with the stock card but 100 percent noise on one of these blower fans does get a bit loud and really when you can just throw better cooling on it it doesn't make a lot of sense to do again especially because it's an expensive card so why why not do a default push fan side up or something like that I know it kind of breaks the Nvidia aesthetic this is only sold on on videos website right now to my understanding I don't think there'll be partner cards there might be a few from EVGA like with the Titan X Maxwell but that would be about the most I would expect so exclusivity does ruin the cooling potential of this a bit because there's not gonna be as many a B partner models if any at all with the push fans with liquid coolers things like that to resolve the thermal throttling points of 84 85 Celsius but this fixed it so and in the very least there's a cool proof of concept this card will now be going back to Sam who loaned it to us for review he's one of our viewers not in video they didn't sample it so thank you Sam for that hopefully if we if we do any modifications before sent in the back we'll do a quick Twitter post or something to follow us at gamers next us on Twitter subscribe check us out on patreon the post roll video or links in the description below if you want to help us out directly on the next projects and thanks for watching I'll see you all next time