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NVIDIA GK106 GPU Pictured, GeForce GTX 660 Benchmarked

Discussion in 'News' started by btarunr, Sep 2, 2012.

  1. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    Here are some of the first pictures of NVIDIA's upcoming GK106 silicon, which goes into building the GeForce GTX 660 graphics card. The GK106, built on the 28 nm silicon fab process, is poised to be NVIDIA's newest mainstream-performance chip that succeeds the GF116. The pictures reveal the chip package to be almost as big as the GF116 but smaller than the GK104. This can be attributed to fewer memory I/O pins (192-bit maximum bus width).

    The rectangular die of the GK106 appears to have roughly the same area as that of the GF116, but with the higher transistor density of the 28 nm process, one can expect a significantly higher transistor count for the chip. If some of the pictures we're seeing are any indication the GK106 will be extremely energy-efficient, as an unknown graphics card based on it draws power from just one 6-pin power connector.

    [​IMG] [​IMG]

    According to the specifications leaked from various sources, some of which include the source of these pictures, the GK106 as GeForce GTX 660 features 960 CUDA cores, 24 ROPs, and a 192-bit wide GDDR5 memory interface, holding 2 GB memory. The card could ship with clock speeds of 980 MHz core, 1033 MHz GPU Boost, and 6.00 GHz memory. At reference speeds and on-spec voltage, the chip could feature a typical power draw of 140W, which explains the need for just one 6-pin power connector.

    Some of the sources managed to get a GeForce GTX 660 sample running with GeForce 305.27 beta drivers, and put it through 3DMark 11. Below are the GPU-Z screenshot (with some fields blanked out by the source), 3DMark 11 Performance preset and 3DMark 11 eXtreme preset numbers.

    [​IMG] [​IMG] [​IMG]

    Sources: Arab PC World, 3DCenter.org, VideoCardz
  2. Dj-ElectriC

    Dj-ElectriC

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    InB4 ZOMG thats GTX580 OC-like 3DM11 score
    _JP_ says thanks.
  3. EpicShweetness

    EpicShweetness

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    Ok finally the GK104 gravy train stops. Still with 5 SMX's and a 192bit bus this chip is . . . weird. Makes me feel like there's something more to the chip, or Nvidia designed it that way to be cut down easier :banghead:
    Which ever, looking forward to this chip,anyone wanna place bets on it's performance?
  4. Xzibit

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    Its interesting if true. I expected it to be smaller

    54mm2 differance makes me think (minor) design flaw with GK104 (Boost throttling) or the poor yields they were getting werent panning out with them.

    This is the first time I can recall Nvidia has made such a small die-size change from its main line up.

    Lots of interesting questions this opens up.
  5. Benetanegia

    Benetanegia New Member

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    I'm 99% sure it's GK106 that was redesigned when Nvidia decided that GK104 would be the chip used in high-end cards and that it's one reason* for GK106 coming late. In fact the times line up almost perfectly, assuming the typical timing from tape out to launch.

    *the other being that GK104 is so much more profitable per wafer and wafers were scarce.

    EDIT: Also the size is most definitely 221 mm^2 as reported by GPU-z. User made measures are almost invariably 20-30 mm^2 larger than the actual die size.
  6. Xzibit

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    I'd like to see your "time table"

    GPU-Z added GTX 660 support in v0.6.3 according to the changelogs back in July, so can we assume its already a month and a half behind schedule or somewhere in-between ?

    What does your schedule say ?

    How do you know GK 106 was redesigned ? Link sources please... I'm sure many here are interested in this information you've obtained ;)
    Last edited: Sep 2, 2012
  7. W1zzard

    W1zzard Administrator Staff Member

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    GPU-Z is not tied to any official schedules. As soon as someone gets his hands on a sample or the drivers I will add support, which will then be included in the next release.
    _Flare says thanks.
  8. Xzibit

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    That was my in-direct way of saying even if the driver or sample was in the wild how would that corrilate to the assumption of

    Was looking for clarity to his assertions.
    Just doesnt make sense to me that something is on schedule "almost perfectly" when it has to be re-designed. Silly me :)
    Last edited: Sep 2, 2012
  9. Hustler New Member

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    So, by how much is this one going to be overpriced.?
  10. Fourstaff

    Fourstaff Moderator Staff Member

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    Overpriced compared to?
  11. _Flare

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    Last edited: Sep 2, 2012
  12. Hustler New Member

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    Compared to the $200/£130-£150 it should be, just as the 660Ti should be $250/£180-£200,

    Nvidia's launch prices are just complete bullshit...
  13. m1dg3t

    m1dg3t

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    Both sides have shitty launch prices, but Nvidia is seemingly higher on average in my area for some reason. Regardless of MSRP
  14. Fourstaff

    Fourstaff Moderator Staff Member

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    Asus 660Ti Direct CU II is about as powerful as vanilla 7970, and they cost £266 and £319 respectively. Vanilla 7950 is 10% weaker and costs £250, and £214 for vanilla 7870 which is 15% weaker (and 25% cheaper). I don't think 660Ti is significantly overpriced compared to its AMD counterparts, at least in UK.

    Can't comment on the 650 yet since Wiz does not have any graphs of them yet.
  15. Hustler New Member

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    Oh, I'm just as critical of AMD's prices as i am of Nvidia's, this whole round of card launches by the pair of them have been complete rip off's.
  16. Fourstaff

    Fourstaff Moderator Staff Member

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    Compared to? 5xx and 6xxx? The 570 launched at about the price we are paying for 670 right now, and the 560Ti is also price competitive with the 570. 30% more powerful for more or less the same price (at launches) seems a good deal to me. Same story for AMD, their 68xx series is quite good price/perf, but we don't have anything good at those price point yet this time round. Waiting for 660 and 650 to potentially fill the gap from Nvidia side, and 7850 and 7770 is very price competitive against the older 68xx series, even 6950.

    I would be very thankful if you provide an example (a graphics card) which, when used as a point of reference, shows that the current gen is overpriced.
    Last edited: Sep 2, 2012
  17. Crap Daddy

    Crap Daddy

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    HD6970 launch 370$ - HD7970 launch $550
    GTX580 launch 500$ - GTX680 launch $500

    HD6950 launch $300 - HD7950 launch $450
    GTX570 launch $330 - GTX670 launch $400

    HD6870 launch 240$ - HD7870 launch $360
    GTX560Ti launch 250$ - GTX660Ti launch 300$
    _JP_ says thanks.
  18. _Flare

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    The HD5850 in April 2010 it was at about 300$+
    August 2010 Gtx460 1GB 256bit about 240$
    Jan. 2011 Gtx 560Ti 240$
    May 2011 Gtx 560 190$
    all at about the Time´s same sweetspot i think

    Setting the 6870 compared to the 7870 is kind of unfair because of the "name-degradation-issue" hehe
    the 7850 2GB started at about 240$ too.
    Last edited: Sep 2, 2012
  19. Fourstaff

    Fourstaff Moderator Staff Member

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    Price and performance difference between:
    6970/7970 - +49% price for +43% perf, clearly 7970 is shyte here
    580/680 - 0% price for 29%, good

    6950/7950 - 50% for 40%, clearly shit
    570/670 - 21% for 35%, not bad

    6870/7870 - 50% for 47% almost equivalent but no cake
    560Ti/660Ti - 20% for 46%, :eek:

    So based on my shitty elementary school maths I can conclude that AMD has shit pricing this round, while Nvidia is doing pretty well at the moment. Of course a few months down the road when prices fall things will change a lot etc but for the moment we are not paying more for less other than from AMD, at least according to RRP.

    Edit: Its interesting to note that 6970 is just slightly more powerful than 7850, and the launch prices reflect that. Also, 580 is just slightly weaker than 660Ti but the launch prices are extremely different for the two.
    Last edited: Sep 2, 2012
  20. Benetanegia

    Benetanegia New Member

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    Your attempts at trolling and crapping are proberbial. I should not even respond knowing that you are simply a troll. Sigh.

    Where do I suggest what I say is anything but my opinion? Anyone with half a brain understands that starting a phrase with I'm 99% sure means it's my opinion.

    And who said anything about the chip being on schedule or not? You're ridiculous. If the chip was redesigned (1-2 SMX added), and taped out around the time that it was made known that GK104 would be the high-end chip instead of the delayed GK100/110, the release date would be soon enough.

    I have to also laugh because of your attempt to connect when the chip is supported by GPUz with my claim of when it (might have) taped out. I think you have no idea of what tape out means, but that shouldn't have been a surprise knowing how many other basic things you don't know.
  21. HumanSmoke

    HumanSmoke

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    It actually makes perfect sense.
    GK104 taped out ~Aug 2011...
    tape out to production of A1 silicon...~6 weeks
    testing and validation....~2-3 weeks
    tape out to production of A2 silicon...~6 weeks
    testing and validation...~2-3 weeks
    Commercial production of A2 rev GK104, shipping, binning, packaging...~12 weeks

    Assuming that Nvidia got wind of AMD Tahiti's performance around the same time that it was paper launched in late December 2011, that puts it at around the same time as Nvidia testing it's A2 (production) silicon (Hence Nvidia's bullish attitude). At this point, Nvidia would have known from their A2 risk wafers what percentages of full / salvage parts they could expect and their relative performance. I'd say that at this point it was determined that either Nvidia realized that the GK104 was capable of reaching down through the product stack in performance/usable die's sufficiently to satisfy the markets, or that the salvage parts overlapped what the full-die GK106 was capable of. Assume, whatever the reasoning, that the final decision on GK106's makeup was made once A2 GK104 and Tahiti became known quantities, and Nvidia's/TSMC's yields demonstrated that the larger die GK104 was sustainable.
    This would equate to a design/redesign between Jan-Apl 2012
    tape out to production of A1 silicon...~6 weeks
    testing and validation...~2-3 weeks
    Commercial production of A1 rev (if the GPU-Z screenshot is correct) GK106, shipping, binning, packaging...~12 weeks
    ...which takes us to September 2012
    Last edited: Sep 2, 2012
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  22. ChristTheGreat

    ChristTheGreat

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    You have to understand that when AMD released their HD7000, There was no nVidia at this moment. when the GTX 680 came out, you could find some HD7950 at lower price. WHen it was the GTX 670, there was a nice price drop. For GTX 6600Ti, HD7870 got a nice price drop, you can find some card around 230$, which is quite nice.

    Company use this strategy often..
    Crunching for Team TPU
  23. m1dg3t

    m1dg3t

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    None of the recent Nvidia cards (670/680) were sold at launch for MSRP localy, they were on average $40 - $80 higher. A standard trick they use to skew perspectives. Hell at 7970 launch they were still the same/cheaper than a 580 FFS! Not sure if this was isolated to my region/country or what :confused:

    Like I said already, I think both sides are charging too much.

    Nice to see fresh silicone coming out from the green team..
  24. Fourstaff

    Fourstaff Moderator Staff Member

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    At the end of the day, we manage to get better stuff compared to last gen at almost any given pricepoint once AMD and Nvidia launched most of their cards, and from that point of view I think we are not being ripped off. However, if you see things differently you might have a reason to scream "rip off!", especially at launch times.
  25. ViperXTR

    ViperXTR

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