GTX 780 or GTX 770? Or change camp?

Discussion in 'Videocards - NVIDIA GeForce' started by MwR, Jul 18, 2013.

  1. SOLLERHOLLER

    SOLLERHOLLER Banned

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    the titan is cool :) those are the high end but how many people can afford that...
     
  2. SOLLERHOLLER

    SOLLERHOLLER Banned

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    my computer is very quite though LOL!!! what about yours?
     
  3. yasamoka

    yasamoka Ancient Guru

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    Waterblocks waiting for me to finish my university semester. Whisper quiet when I was running my waterloop. Now I'm back on stock cooler waiting for a chance for a proper go at it.

    I think OP would be a bit annoyed if we went more off-topic, though :p
     
  4. SOLLERHOLLER

    SOLLERHOLLER Banned

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    i guess cool :) speak soon good luck for the guy with the hard decision to make :)
     

  5. IcE

    IcE Don Snow Staff Member

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    I think the magic number for Tahiti is actually around 1200, with 1280 being Kepler's. However, I bolded this because I was never disagreeing with it. But really, I'm not out of touch, nor do I actually think that the 7950 realistically competes with the 660Ti as of today since the clocks have been bumped. I was just setting a reference point. When the 660Ti came out, Nvidia was targeting the 850Mhz 7950.

    All I'm saying is that ~10% performance difference at the high end of overclocks (between a max overclocked Tahiti & Kepler) is hardly that big of a lead. Did AMD win the round? Debatable, but they certainly have the performance crown, which I'm not trying to deny. But really, "left in the dust"? Come on now, bro.

    Also, I'm not biased, my clock comparisons come from personal experience. My 7970 at 1000 matched my 680 at 1056, pretty much exactly. Tahiti gets a scaling bump once it hits 1200, while Kepler's clock scaling falls off, however: a lot of the gains on Kepler on the high end of overclocking come from VRAM raising. On Tahiti, memory overclocking doesn't do much because of the 384bit bus.
     
  6. Pill Monster

    Pill Monster Banned

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    I didn't say you're bias, not sure what gave u that idea.... :3eyes:

    Anyway idk if the newest GPU's will do 1200mhz, there are some nasty rumors that the very latest GPU's have been voltage locked.

    Tbh I'm skeptical of this and have yet to see or come across any solid evidence, doesn't mean it's not true though.

    Does seem odd that AMD would do this now after 1.5yrs.....so who knows.
     
    Last edited: Jul 20, 2013
  7. Loophole35

    Loophole35 Ancient Guru

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    I think it was the vanilla 7970 and 7950's that were locked the pro2 and XT2 are still unlocked as far as I've seen.
     
  8. IcE

    IcE Don Snow Staff Member

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    I know you didn't say it, I was just laying it down since I own a 680 currently. The reasons I bought it were not related to an illusion of superior performance or anything. A lot of it was that I'm too lazy to overclock these days :wanker: Auto overclock for the win.

    As for voltage locked 7970's, some OEM's have been doing that for a while, like Gigabyte. It's garbage honestly, next gen GPU's better not be all voltage locked again.
     
  9. Pill Monster

    Pill Monster Banned

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    Well with 4GB at least you have a good start if you want to go SLI.

    If I ever went muilti GPU again it sure wouldn't be CF.
    I'd love to get another 7950, but sadly AMD CF support still sucks as much as when I ran X1950 XT CF - and that sucked pretty hard. :D

    Why do u say it doesn't do much?
    If u mean they already have plenty of bandwidth and don't need any more I'd prob agree with you....


    OK cool.
     
    Last edited: Jul 20, 2013
  10. eclap

    eclap Banned

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    yeah, overclocking the vram doesn't yield much performance on hd 79xx cards, due to bandwidth. Unlike on gtx 670/680.
     

  11. IcE

    IcE Don Snow Staff Member

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    Yep, that's what I meant. On a Kepler card, raising the VRAM speed from stock to ~7Ghz yields a pretty notable gain even by itself. It's the reason the 770 exists as it does right now.
     
  12. Pill Monster

    Pill Monster Banned

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    Hmm I wonder if I reduced my vram overclocked it will give me a better GPU oc....due to tdp limit.
     
  13. IcE

    IcE Don Snow Staff Member

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    It's possible, I would try. Getting to 1250 would give you quite a boost.
     
  14. Loophole35

    Loophole35 Ancient Guru

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    ^I concur a Tahiti at 1250 is a monster.
     
  15. CronosX9x9X

    CronosX9x9X Master Guru

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    Yeah go for it : ). Got my 770 to 1250 core and 7800 Mem and it's pretty stable and has a good performance boost. Went on the steam sale and now want to try it.
     

  16. ---TK---

    ---TK--- Ancient Guru

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    what does pretty stable mean?
     
  17. Loophole35

    Loophole35 Ancient Guru

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    It may run a benchmark???????
     
  18. Vxheous

    Vxheous Maha Guru

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    After reading all the posts, it looks like you have several options:

    1. Buy a GTX 780
    2. Change out your motherboard to one that supports SLi, add second GTX 670
    3. Sell current GTX 670, buy 2x 7970 Ghz editions for CF, overclock both.

    Personally, I say get the single fastest card you can and run with it, because you don't seem like the type that wants to spend time tweaking your hardware. Anytime you have a multi-GPU system, you're going to end up having to spend at least some time tweaking profiles, etc.
     
  19. MwR

    MwR Master Guru

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    Pretty much, because I'm envisioning a short work order this time round, and leave the major tweaking the next major hardware upgrade, probably when it's time for that 29" display.

    Still, what about a 3GB / 4GB version of GTX770? Seen a few reviews on the Guru3D site and looks promising. If that's good enough I'll have that instead.
     
  20. Dillinger

    Dillinger Master Guru

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    Upgrading from a 670 to an OC'd 680 is a worthy upgrade to you?

    That's essentially what a 770 is...you may as well just OC your 670.
     

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