Letting Titan Spread Its Wings, Cont

Moving on, let’s take a look at 3 of our most intensive games: Battlefield 3, Far Cry 3, and Crysis 3.

Far Cry 3 is another game that highlights the difficulty in keeping all 3 Titans fed. We have to go to 5760 before a tri-SLI setup isn’t being held back by the CPU. Once we’re there however, additional Titans make a clear difference. At least 2 are required to keep average framerates above 60fps at 5760 without anti-aliasing, and with the AA cranked up even 3 Titans can’t quite crack 60fps. This may be for the best though; for some reason the input lag at 5760 with 3 Titans is especially bad, and this is likely a further artifact of Far Cry 3’s quirks.

At the very least scaling is once again fairly good. At 5760 with AA moving from 1 to 2 Titans improves performance by 82%, and 2 to 3 Titans by another 35%.

Battlefield 3 isn’t appreciable CPU limited, but it does present something of a scaling issue for Titan. Scaling with 1 display is only 67% for the 2nd Titan, and 45% for the 3rd. And with multiple displays at 5760 with MSAA that becomes 59% and 43% respectively. Oddities aside of scaling being relatively better with the 3rd Titan than the 2nd, even with MSAA we’re seeing an average of 70fps with 2 Titans at 5760, so minimum framerates are still above 30fps. So the practical advantage of the 3rd Titan is limited to minimum framerates, or otherwise doing 120Hz gaming.

Finally we have Crysis 3, which is first being used here before rolling it into our larger benchmark suite. Taken from the intro level (Post-Human), Crysis 3 was meant to kill GPUs and it shows. 1 Titan can’t break 60fps at 2560 even with FXAA, and 2 Titans are just short if we add MSAA. Move to 5760, and even 3 Titans won’t break 60fps with FXAA. So while the rest of the games in our suite need multi-monitor resolutions to really take advantage of a tri-SLI setup, even 1 2560 monitor can drag a tri-SLI setup back down to earth when it comes to Crysis 3. Even if it’s not game of the year, just as in past years Crysis 3 will move high-end video cards; of that there’s no doubt.

Looking at Titan scaling again, Crytek and NVIDIA have clearly done their homework for single-monitor resolutions. At 2560 with MSAA scaling is 89% from 1 card to 2, and 44% from 2 cards to 3. Unsurprisingly, scaling does taper off at 5760 due to the performance hit of keeping multiple display buffers across multiple cards organized. 1 card to 2 cards is just 72% here, but adding a 3rd card adds another 47% in performance.

Across our 6 games we can see that 3 Titans generally pays off, but a big part of this is using resolutions and settings that can shift as much of the burden onto the GPU as possible. With the exception of Crysis 3 almost everything plays fine on just 2 Titans, with the 3rd Titan necessary to hit 5760x1200 with the best quality settings. On the other hand the fact that even Crysis 3 is almost at 60fps at 5760 with everything short of MSAA turned up is quite a change of pace. NVIDIA told us they wanted tri-SLI Titan to be a no-compromise gaming setup, and indeed they’ve delivered on that.

The only way we’d be able to push a tri-SLI Titan setup harder would either be to use a 2560x1440 surround setup – which admittedly isn’t outside the realm of possibility when we’re talking about pairing it with a $9000 computer – or otherwise going outside the lines and using SSAA on the titles that support it. It may come off as hyperbole, but “I have 3 monitors and the Genesis still isn’t slow enough” was a very real problem putting this article together. To that end it’s surprising that we weren’t CPU limited more often than we were; it’s still a concern, but for the most part in surround gaming the CPU can stay ahead of the GPU, at least if it’s as heavily overclocked as the Genesis’ 4.9GHz SNB-E.

Titan Tri-SLI In-Depth: Letting Titan Spread Its Wings Power, Temperature, and Noise
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  • sticks435 - Wednesday, April 24, 2013 - link

    I agree with some other replies, they should have waited and used the 900D and also used thicker rads. That's the reason the fans have to be turned up so high. Those look like 35mm rads, which probably have a high FPI count (20-30) is my guess. If they had used thick 60mm rads, they could have turned the fans down much lower or only used 1 set and got the same or better temps at lower noise. Dual loops would have also helped, but at that point you might as well do it yourself lol.
  • rohini - Wednesday, April 24, 2013 - link

    oh God!
    What the hell will you do with such a config? You're wasting power nothing else. Even a single Titan is more than sufficient for all the latest games let alone the 3 way SLI.
  • Silma - Thursday, April 25, 2013 - link

    For $9k I'm not expecting a 51dB loud computer but rather about 35dB.
    I have a loud computer with otherwise perfect specs and boy I am looking forward to the next one which will be silent as a priority.
    Also 240GB SSD is absolutely not enough, for the price I'm expecting 480GB at the very least.

    Otherwise it looks like a great PC.
  • ChuckyDB - Thursday, April 25, 2013 - link

    Honestly, the cooling is clearly poor for that price.
    That crazy overclock sure is heating up the water, but not like those power hungry Titans.
    I have seen on a forum a dude with 2 Titans on water at around 40C.
    This build, with the cards being at 66C, that means the water is quite hot. No wonder the cpu is going over 80. For a build of this magnitude, it is quite sad.
    For cooling that CPU, I would have taken 2 radiators because of that overclock, and 2 radiators for each GPU to keep that water temperature down. That's 8 radiators total. 5 isn't enough for a single loop.
    Personnaly, I would have either:
    1) Made a double loop, that way the gpus could have heated the water all they wanted on their side and the cpu would have had more breathing space.
    2) Or, if I'm not mistaken, that looks like some Koolance quick disconnect plugs around the gpus. http://koolance.com/help-quick-disconnect-shutoff-...
    That means we could easily add a radbox on the back and get 3 more radiators in that system. http://koolance.com/radiator-mounting-bracket-with...
    That would give a much better thermal performance, and mabey give the chance to keep the fans a low speed at all time. Sure it looks ugly, but someone who can do it should in my opinion.
  • dishayu - Friday, April 26, 2013 - link

    This system has more frame buffer than RAM. :|
  • chazh - Friday, April 26, 2013 - link

    this is 8K stuff. beastly mainly. it must be targeted the enthusiast gaming user.
    with those triple titans it seem the motherboard is not quite match.
    otherwise, maybe maximus v extreme will be a wise choice.
    and without a discrete sound card..well i feel something missing in this rig.
  • wshawn - Saturday, April 27, 2013 - link

    Let me buy a server and a couple of I7-3xxx systems and a decent laptop. I'll probably still have money left over. There isn't $9k worth of anything here.

    "These aren't the droids you're looking for. Move along."
  • Conficio - Sunday, April 28, 2013 - link

    +Ryan are you susing a DSLR type camera? If so you can reduce the glare and reflections on the cases by buying a polarization filter and using it accordingly. Would make great reviews even better!
    Thanks for your hard work.
  • fuzz111111 - Tuesday, April 30, 2013 - link

    Are you sure it was the CPU holding some games back? Nvidia cards, without a patch, run at PCIE 2.0 on X79, and this apparently bottlenecks SLI setups:
    https://forums.geforce.com/default/topic/516811/ge...
  • UltraTech79 - Tuesday, April 30, 2013 - link

    Really? $9000 and they put fucking TITANs in there?

    Morons.

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