Meet The GeForce GTX 780 Ti

When it comes to the physical design and functionality of the GTX 780 Ti, to no surprise NVIDIA is sticking with what works. The design of the GTX Titan and its associated cooler have proven themselves twice over now between the GTX Titan and the GTX 780, so with only the slightest of changes this is what NVIDIA is going with for GTX 780 Ti, too. Consequently there’s very little new material to cover here, but we’ll quickly hit the high points before recapping the general design of what has now become the GTX 780 series.

The biggest change here is that GTX 780 Ti is the first NVIDIA launch product to feature the new B1 revision of their GK110 GPU. B1 has already been shipping for a couple of months now, so GTX 780 Ti isn’t the first card to get this new GPU. However while GTX Titan and GTX 780 products currently contain a mix of the old and new revisions as NVIDIA completes the change-over, GTX 780 Ti will be B1 (and only B1) right out the door.

As for what’s new for B1, NVIDIA is telling us that it’s a fairly tame revision of GK110. NVIDIA hasn’t made any significant changes to the GPU, rather they’ve merely gone in and fixed some errata that were in the earlier revision of GK110, and in the meantime tightened up the design and leakage just a bit to nudge power usage down, the latter of which is helpful for countering the greater power draw from lighting up the 15th and final SMX. Otherwise B1 doesn’t have any feature changes nor significant changes in its power characteristics relative to the previous revision, so it should be a fairly small footnote compared to GTX 780.

The other notable change coming with GTX 780 Ti is that NVIDIA has slightly adjusted the default temperature throttle point, increasing it from 80C to 83C. The difference in cooling efficiency itself will be trivial, but since NVIDIA is using the exact same fan curve on the GTX 780 Ti as they did the GTX 780, the higher temperature throttle effectively increases the card’s equilibrium point, and therefore the average fan speed under load. Or put another way, but letting it get a bit warmer the GTX 780 Ti will ramp up its fan a bit more and throttle a bit less, which should help offset the card’s increased power consumption while also keeping thermal throttling minimized.

GeForce GTX 780 Series Temperature Targets
GTX 780 Ti Temp Target GTX 780 Temp Target GTX Titan Temp Target
83C 80C 80C

Moving on, since the design of the GTX 780 Ti is a near carbon copy of GTX 780, we’re essentially looking at GTX 780 with better specs and new trimmings. NVIDIA’s very effective (and still quite unique) metallic GTX Titan cooler is back, this time featuring black lettering and a black tinted window. As such GTX 780 Ti remains a 10.5” long card composed of a cast aluminum housing, a nickel-tipped heatsink, an aluminum baseplate, and a vapor chamber providing heat transfer between the GPU and the heatsink. The end result is the GTX 780 Ti is a quiet card despite the fact that it’s a 250W blower design, while still maintaining the solid feel and eye-catching design that NVIDIA has opted for with this generation of cards.

Drilling down, the PCB is also a re-use from GTX 780. It’s the same GK110 GPU mounted on the same PCB with the same 6+2 phase power design. This being despite the fact that GTX 780 Ti features faster 7GHz memory, indicating that NVIDIA was able to hit their higher memory speed targets without making any obvious changes to the PCB or memory trace layouts. Meanwhile the reuse of the power delivery subsystem is a reflection of the fact that GTX 780 Ti has the same 250W TDP limit as GTX 780 and GTX Titan, though unlike those two cards GTX 780 Ti will have the least headroom to spare and will come the closest to hitting it, due to the general uptick in power requirements from having 15 active SMXes. Finally, using the same PCB also means that GTX 780 has the same 6pin + 8pin power requirement and the same display I/O configuration of 2x DL-DVI, 1x HDMI, 1x DisplayPort 1.2.

On a final note, for custom cards NVIDIA won’t be allowing custom cards right off the bat – everything today will be a reference card – but with NVIDIA’s partners having already put together their custom GK110 designs for GTX 780, custom designs for GTX 780 Ti will come very quickly. Consequently, expect most (if not all of them) to be variants of their existing custom GTX 780 designs.

The NVIDIA GeForce GTX 780 Ti Review Hands On With NVIDIA's Shadowplay & The Test
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  • bigboxes - Thursday, November 7, 2013 - link

    "Doesn't bode well." Just zip it.
  • TheJian - Thursday, November 7, 2013 - link
    Fast forward to 8:35 or so...Got smashed, both OC'ed to the max. In Uber as anandtech even showed, it hits it's max all day. So 1ghz won't get more, and they run higher than that at linustechtips (both cards oced max they could get). Nowhere close in any benchmark they run. Don't forget you can clock the crap out of 780TI as already shown everywhere. If you're assuming a "Properly Cooled" ghz edition beats 780ti well we've only seen REF 780TI's so far too right? So what does a "Properly Cooled" 780ti do? They hit 1200-1300 stock fan. Will they hit 1300-1400 with an aftermarket fan? You won't catch it as it is without water and you'll need to be way over 1ghz to do it and pulling more watts no doubt.

    What record are you giving? Assumptions and guesswork that goes against all current info from MANY sites. Check out all the sites I listed. That is what we call "for the record".
    Only 1120/1175 (base/boost) and it's 30.8% faster than UBER 290x. Not even sure water would catch this and this is a WEAK OC compared to other sites like overclockers hitting 1291/1304. They can do this out of the box.
  • whiteswolf - Sunday, June 8, 2014 - link

    to let you know the nvidea gtx 780 ti is walking and not breaking sweat. while the amdsare running think of it this way. if you over clock or make nvidea gtx 780 ti sprint it is said int can get a 19% to 20% boost in performence. and it only gets noise and sound of amds card.
  • Da W - Thursday, November 7, 2013 - link

    The only thing louder than a 290X is a Nvidia Fanboy.
  • HisDivineOrder - Thursday, November 7, 2013 - link

    Actually, I think the louder thing still is the sound of AMD fanboys coming into a review of a new nVidia halo product and crying about "nvidia fanboys." ;)
  • OverclockedCeleron - Thursday, November 7, 2013 - link

    Well, ask your colleague troll not to bring AMD trash talk into an Nvidia article. (See first comment to this article).
  • bigboxes - Thursday, November 7, 2013 - link

  • Flunk - Thursday, November 7, 2013 - link

    Sure, if you like to throw money away. Nvidia could seriously destroy AMD on this generation, but they're choosing not to compete by not pricing in line with performance.

    I personally think AMD has the edge when it comes to cost/unit because their chip is smaller, which is how they can price so much lower.
  • 1Angelreloaded - Thursday, November 7, 2013 - link

    See its about the feature sets as well that determine price, and of course support. The 289x should have been released with the 600 series not the end of the 700 series and at the edge of starting the 800 series in a few months with Maxwell.
  • 1Angelreloaded - Thursday, November 7, 2013 - link

    edit "290x"

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