Meet The GeForce GTX 780, Cont

With all of that said, GTX 780 does make one notable deviation from GTX Titan. NVIDIA has changed their stock fan programming for GTX 780, essentially slowing down the fan response time to even out fluctuations in fan speeds. NVIDIA has told us that they’ve found that next to loud fans in general, the second most important factor in fan noise becoming noticeable is rapidly changing fan speeds, with the changing pitch and volume drawing attention to the card. Slowing down the response time in turn will in theory keep the fan speed from spiking so much, or quickly dropping (i.e. loading screen) only to have to immediately jump back up again.

In our experience fan response times haven’t been an issue with Titan or past NVIDIA cards, and we’d be hard pressed to tell the difference between GTX 780 and Titan. With that said there’s nothing to lose from this change, GTX 780 doesn’t seem to be in any way worse for it, so in our eyes there’s no reason for NVIDIA not to go ahead with the change.

On that note, since this is purely a software(BIOS) change, we asked NVIDIA about whether this could be backported to the hardware equivalent Titan. The answer is fundamentally yes, but because NVIDIA doesn’t have a backup BIOS system, they aren’t keen on using BIOS flashing any more than necessary. So an official (or even unofficial) update from NVIDIA is unlikely, but given the user community’s adept BIOS modding skills it’s always possible a 3rd party could accomplish this on their own.

Moving on, unlike Titan and GTX 690, NVIDIA will be allowing partners to customize GTX 780, making this the first line of GK110 cards to allow customization. Potential buyers that were for whatever reason disinterested in Titan due to its blower will find that NVIDIA’s partners are already putting together more traditional open air cooler coolers for GTX 780. We can’t share any data about them yet – today is all about the reference card – but we already have one such card in-hand with EVGA’s GeForce GTX 780 ACX.

The reference GTX 780 sets a very high bar in terms of build quality and performance, so it will be interesting to see what NVIDIA’s partners can come up with. With NVIDIA testing and approving all designs under their Greenlight program, all custom cards have to meet or beat NVIDIA’s reference card in factors such as noise and power delivery, which for GTX 780 will not be an easy feat.  However because of this requirement it means NVIDIA’s partners can deviate from NVIDIA’s reference design without buyers needing to be concerned that custom cards are significantly worse than then reference cards, something that benefits NVIDIA’s partners by their being able to attest to the quality of their products (“it got through Greenlight”), and benefitting buyers by letting them know they’re getting something that will be as good as the reference GTX 780, regardless of the specific make or model.

On that note, since we’re talking about card construction let’s quickly dive into overclocking. Overclocking is essentially unchanged from GTX Titan, especially since everything so far is using the reference PCB. The maximum power target remains at 106% (265W) and the maximum temperature target remains at 95C. Buyers will be able to adjust these as they please through Precision X and other tools, but no more than they already could on Titan, which means overclocking is fairly locked down.

Overvolting is also supported in a Titan-like manner, and once again is at the discretion of the card’s partner. By default GTX 780 has a maximum voltage of 1.1625v, with approved overvolting allowing the card to be pushed to 1.2v. This comes in the form of higher boost bins, so enabling overvolting is equivalent to unlocking a +13MHz bin and a +26MHz bin and their requisite voltages. However this also means that those voltages aren’t typically reached with overclocking and overvolting only has a minimal effect, as most overclocking attempts are going to hit TDP limits before they hit the unlocked boost bins.

GeForce Clockspeed Bins
Clockspeed GTX Titan GTX 780
1032MHz N/A 1.2v
1019MHz 1.2v 1.175v
1006MHz 1.175v 1.1625v
992MHz 1.1625v 1.15v
979MHz 1.15v 1.137v
966MHz 1.137v 1.125v
953MHz 1.125v 1.112v
940MHz 1.112v 1.1v
927MHz 1.1v 1.087v
914MHz 1.087v 1.075v

 

Meet The GeForce GTX 780 Software: GeForce Experience, Out of Beta
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  • Rodrigo - Thursday, May 23, 2013 - link

    Excellent choice for less money than Titan! :-) Reply
  • Ja5087 - Thursday, May 23, 2013 - link

    "NVIDIA will be pricing the GTX 680 at $650, $350 below the GTX Titan and GTX 690, and around $200-$250 more than the GTX 680."

    I think you mean the 780?
    Reply
  • Ja5087 - Thursday, May 23, 2013 - link

    Accidently replied instead of commented Reply
  • Ryan Smith - Thursday, May 23, 2013 - link

    Thanks. Fixed. Reply
  • nunomoreira10 - Thursday, May 23, 2013 - link

    compared to titan it sure is a better value, but compared to the hight end 2 years ago its twice as much ( titan vs 580 ; 780 vs 570 ; 680 vs 560)
    NVIDIA is slowly geting people acoustmed to hight prices again,
    im gona wait for AMD to see what she can bring to the table
    Reply
  • Hrel - Friday, May 24, 2013 - link

    She? AMD is a she now? Reply
  • SevenWhite7 - Monday, July 08, 2013 - link

    Yeah, 'cause AMD's more bang-for-the-buck.
    Basically, NVidia's 'he' 'cause it's always the most powerful, but also costs the most.
    AMD's 'she' 'cause it's always more efficient and reasonable.
    I'm a guy, and guys are usually more about power and girls are more about the overall package.
    Just my experience, anyway, and this is just me being dumb trying to explain it with analogies =P
    Reply
  • sperkowsky - Wednesday, February 26, 2014 - link

    bang for your buck has changed a bit just sold my 7950 added 80 bucks and bought a evga acx 780 b stock Reply
  • cknobman - Thursday, May 23, 2013 - link

    At $650 I am just not seeing it. In fact I dont even see this card putting any pressure on AMD to do something.

    I'd rather save $200+ and get a 7970GE. If Nvidia really wants to be aggressive they need to sell this for ~$550.
    Reply
  • chizow - Thursday, May 23, 2013 - link

    Nvidia has the GTX 770 next week to match up against the 7970GE in that price bracket, the 780 is clearly meant to continue on the massive premiums for GK110 flagship ASIC started by Titan. While it may not justify the difference in price relative to 7970GHz it's performance, like Titan, is clearly in a different class. Reply

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