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
POST A COMMENT

302 Comments

View All Comments

  • polaco - Friday, November 08, 2013 - link

    Indeed that's exactly the way I see it. AMD has played it's cards quite well this time. NVidia seems to be on it's price knees and can't compete any way. NVidia needs a new GPU to compete with Hawaii. I don't want to put into cosideration Mantle, TrueAudio, Gsync nor the Shield discount.
    Mantle and TrueAudio hasn't been demoed yet.
    Shield seems like a waste of money and almost useless for me.
    Maybe in a future if they prove to be worthy we will see Mantle, TrueAudio and Gsync to be included as part of an upgrade other standards.
    Reply
  • Gigaplex - Sunday, November 10, 2013 - link

    Only 5% faster than a $1000 card? Yeah, totally overpriced at $700.

    Sarcasm aside, it really is overpriced. But comparing it to the Titan to justify that claim doesn't work.
    Reply
  • polaco - Friday, November 08, 2013 - link

    Well looking at Anand's benchmarks I can't find a way to justify spending such amount of money on this card. AMD 290 and 290X looks way more interesting. As difference to others reviews Anand's has focused only in ultra high resolutions I think that's the way to go. Since no one would buy one of this cards (780ti, 290X) to game at 1680x1050. So at this high resolutions performances differences between the cards are barely minimal in most cases and could be reduced even more by drivers updates or settings tunning. I find no reason to spend such a difference for 780 Ti while having more than decent performance from radeon 290 at 250 bucks less. If I would want to go to an extreme instead of aquiring a 780Ti it would be better and get 2xradeon290 for 100 bucks more. So the problem of 780Ti is it's price, pure and simple. I really find difficult NVidia could lower the prices more since it looks 290 and 290X launch has putted NVidia prices to it's knees. So far I'm still waiting for 290, 290X third party coolers if they are good they can even pair or overcome 290 and 290X performance against 780Ti. What I have no doubt is how Titan and 780 early buyers must be feeling at this moment... Reply
  • j6z7 - Friday, November 08, 2013 - link

    I think the majority of comments here reveals the truth behind big headlines with reviews.

    The reference 290X with 10 year old reference cooler still beating the 780ti with best cooler in CF - and it does it being $300 cheaper too!

    If anything, Nvidia shot itself in the foot against its own Titan.
    Nvidia fans will continue to support the company in ripping people off, while AMD provides same performance at affordable prices.

    End of the day, people who'll buy the 290X will be much more satisfied customers.

    The End.
    Reply
  • Mondozai - Friday, December 13, 2013 - link

    Nvidia fanboys like EJS1980 are like battered wives. They are trying to rationalize themselves being raped. Reply
  • b3nzint - Friday, November 08, 2013 - link

    You must be pissed with 290x being priced that low. Anyway AMD should reconsider for using that blower type fan. Nvidia have better cooling system than AMD, but for that price i just don't care. For $700? still too much. Reply
  • b3nzint - Friday, November 08, 2013 - link

    what about mantle, compute power and trueaudio? u don't buy gpu for just friggin fps number! Reply
  • wwwcd - Friday, November 08, 2013 - link

    WoW Ryan cut my comment. I know he is a really hard green fen, but this censor not placed with democracy. I can revenge of m-r Anand! Reply
  • Ryan Smith - Friday, November 08, 2013 - link

    Uh, we haven't deleted anything. Are you sure you haven't just misplaced your comment? Reply
  • not_there - Friday, November 08, 2013 - link

    I'm not a gamer, but I like to put a decent video card in my builds to run Folding@Home. It's real science and it helps heat my basement. Reading the reviews here I'm confused (someone point out what I'm missing). In a June review of the GTX 760 the Radeon HD 7970 got a 36.1 and in this review, the same card on the same test got a 29.3. This was the Folding@Home Explicit, Single Precision benchmark. June number for the GTX 770 in this test was 35.6 and in the same test on the same card in this review the benchmark is 15.1. Why the difference? Reply

Log in

Don't have an account? Sign up now