In a typical high-end GPU launch we’ll see the process take place in phases over a couple of months if not longer. The new GPU will be launched in the form of one or two single-GPU cards, with additional cards coming to market in the following months and culminating in the launch of a dual-GPU behemoth. This is the typical process as it allows manufacturers and board partners time to increase production, stockpile chips, and work on custom designs.

But this year things aren’t so typical. GK104 wasn’t the typical high-end GPU from NVIDIA, and neither it seems is there anything typical about its launch.

NVIDIA has not been wasting any time in getting their complete GK104 based product lineup out the door. Just 6 weeks after the launch of the GeForce GTX 680, NVIDIA launched the GeForce GTX 690, their dual-GK104 monster. Now only a week after that NVIDIA is at it again, launching the GK104 based GeForce GTX 670 this morning.

Like its predecessors, GTX 670 will fill in the obligatory role as a cheaper, slower, and less power-hungry version of NVIDIA’s leading video card. This is a process that allows NVIDIA to not only put otherwise underperforming GPUs to use, but to satisfy buyers at lower price points at the same time. Throughout this entire process the trick to successfully launching any second-tier card is to try to balance performance, prices, and yields, and as we’ll see NVIDIA has managed to turn all of the knobs just right to launch a very strong product.

  GTX 680 GTX 670 GTX 580 GTX 570
Stream Processors 1536 1344 512 480
Texture Units 128 112 64 60
ROPs 32 32 48 40
Core Clock 1006MHz 915MHz 772MHz 732MHz
Shader Clock N/A N/A 1544MHz 1464MHz
Boost Clock 1058MHz 980MHz N/A N/A
Memory Clock 6.008GHz GDDR5 6.008GHz GDDR5 4.008GHz GDDR5 3.8GHz GDDR5
Memory Bus Width 256-bit 256-bit 384-bit 320-bit
VRAM 2GB 2GB 1.5GB 1.25GB
FP64 1/24 FP32 1/24 FP32 1/8 FP32 1/8 FP32
TDP 195W 170W 244W 219W
Transistor Count 3.5B 3.5B 3B 3B
Manufacturing Process TSMC 28nm TSMC 28nm TSMC 40nm TSMC 40nm
Launch Price $499 $399 $499 $349

Like GeForce GTX 680, GeForce GTX 670 is based on NVIDIA’s GK104 GPU. So we’re looking at the same Kepler design and the same Kepler features, just at a lower level of performance. As always the difference is that since this is a second-tier card, NVIDIA is achieving that by harvesting otherwise defective GPUs.

In a very unusual move for NVIDIA, for GTX 670 they’re disabling one of the eight SMXes on GK104 and lowering the core clock a bit, and that’s it. GTX 670 will ship with 7 active SMXes, all 32 of GK104’s ROPs, and all 4 GDDR5 memory controllers. Typically we’d see NVIDIA hit every aspect of the GPU at once in order to create a larger performance gap and to maximize the number of GPUs they can harvest – such as with the GTX 570 and its 15 SMs & 40 ROPs – but not in this case.

Meanwhile clockspeeds turn out to be equally interesting. Officially, both the base clock and the boost clock are a fair bit lower than GTX 680. GTX 670 will ship at 915MHz for the base clock and 980MHz for the boost clock, which is 91MHz (9%) and 78MHz (7%) lower than the GTX 680 respectively. However as we’ve seen with GTX 680 GK104 will spend most of its time boosting and not necessarily just at the official boost clock. Taken altogether, depending on the game and the specific GPU GTX 670 has the capability to boost within 40MHz or so of GTX 680, or about 3.5% of the clockspeed of its more powerful sibling.

As for the memory subsystem, like the ROPs they have not been touched at all. GTX 670 will ship at the same 6.008GHz memory clockspeed of GTX 680 with the same 256-bit memory bus, giving it the same 192GB/sec of memory bandwidth. This is particularly interesting as NVIDIA has always turned down their memory clocks in the past, and typically taken out a memory controller/ROP combination in the past. Given that GK104 is an xx4 GPU rather than a full successor to GF110 and its 48 ROPs, it would seem that NVIDIA is concerned about their ROP and memory performance and will not sacrifice performance there for GTX 670.

Taken altogether, this means at base clocks GTX 670 has 100% of the memory bandwidth, 91% of the ROP performance, and 80% of the shader performance of GTX 680. This puts GTX 670’s specs notably closer to GTX 680 than GTX 570 was to GTX 580, or GTX 470 before it. In order words the GTX 670 won’t trail the GTX 680 by as much as the GTX 570 trailed the GTX 580 – or conversely the GTX 680 won’t have quite the same lead as the GTX 580 did.

As for power consumption, the gap between the two is going to be about the same as we saw between the GTX 580 and GTX 570. The official TDP of the GT 670 is 170W, 25W lower than the GTX 680. Unofficially, NVIDIA’s GPU Boost power target for GTX 670 is 141W, 29W lower than the GTX 680. Thus like the GTX 680 the GTX 670 has the lowest TDP for a part of its class that we’ve seen out of NVIDIA in quite some time.

Moving on, unlike the GTX 680 launch NVIDIA is letting their partners customize right off the bat. GTX 670 will launch with a mix of reference, semi-custom, and fully custom designs with a range of coolers, clockspeeds, and prices. There are a number of cards to cover over the coming weeks, but today we’ll be looking at EVGA’s GeForce GTX 670 Superclocked alongside our reference GTX 670.

As we’ve typically seen in the past, custom cards tend to appear when GPU manufacturers and their board partners feel more comfortable about GPU availability and this launch is no different. The GTX 670 launch is being helped by the fact that NVIDIA has had an additional 7 weeks to collect suitable GPUs compared to the GTX 680 launch, on top of the fact that these are harvested GPUs. With that said NVIDIA is still in the same situation they were in last week with the launch of the GTX 690: they already can’t keep GK104 in stock.

Due to binning GTX 670 isn’t drawn from GTX 680 inventory, so it’s not a matter of these parts coming out of the same pool, but realistically we don’t expect NVIDIA to be able to keep GTX 670 in stock any better than they can GTX 680. The best case scenario is that GTX 680 supplies improve as some demand shifts down to the GTX 670. In other words Auto-Notify is going to continue to be the best way to get a GTX 600 series card.

Finally, let’s talk pricing. If you were expecting GTX 570 pricing for GTX 670 you’re going to come away disappointed. Because NVIDIA is designing GTX 670 to perform closer to GTX 680 than with past video cards they’re also setting the prices higher. GTX 670 will have an MSRP of $399 ($50 higher than GTX 570 at launch), with custom cards going for higher yet. This should dampen demand some, but we don’t expect it will be enough.

Given its $399 MSRP, the GTX 670 will primarily be competing with the $399 Radeon HD 7950. However from a performance perspective the $479 7970 will also be close competition depending on the game at hand. AMD’s Three For Free promo has finally gone live, so they’re countering NVIDIA in part based on the inclusion of Deus Ex, Nexuiz, and DiRT Showdown with most 7900 series cards.

Below that we have AMD’s Radeon HD 7870 at $350, while the GTX 570 will be NVIDIA’s next card down at around $299. The fact that NVIDIA is even bothering to mention the GTX 570 is an interesting move, since it means they expect it to remain as part of their product stack for some time yet.

Update 5/11: NVIDIA said GTX 670 supply would be better than GTX 680 and it looks like they were right. As of this writing Newegg still has 5 of 7 models still in stock, which is far better than the GTX 680 and GTX 690 launches. We're glad to see that NVIDIA is finally able to keep a GTX 600 series card in stock, particularly a higher volume part like GTX 670.

Spring 2012 GPU Pricing Comparison
  $999 GeForce GTX 690
  $499 GeForce GTX 680
Radeon HD 7970 $479  
Radeon HD 7950 $399 GeForce GTX 670
Radeon HD 7870 $349  
  $299 GeForce GTX 570
Radeon HD 7850 $249  
  $199 GeForce GTX 560 Ti
  $169 GeForce GTX 560
Radeon HD 7770 $139  


Meet The GeForce GTX 670
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  • Samus - Thursday, May 10, 2012 - link

    I'm just pissed I bought a GTX560 448 Core (basically a GTX570) just four months ago, and now its completely outdated lol.
  • SlyNine - Thursday, May 10, 2012 - link

    Then I'd recommend never buying videocards.

    On the other hand a GTX 560 may not be the newest card in its price bracket, outdated seems to be a harsh word. You still get the same performance you paid for, it's not going to drop just because something newer came out.

    My 5870 was 2 1/2 years old, cost me 384$ at the time, The price/performance stayed relevant right until the 680GTX came out.
  • Papaspud - Thursday, May 10, 2012 - link

    Exactly, I was running a GTX 285, and it didn't { slow down} when the new cards came out. Decide what card you want and be happy, the next new card is always on the way, and your card won't be the bestest forever.

    I was lucky and camped newegg when the GTX 680's came out and scored, very good card, but that being said AMD's cards are very nice too and I would be more than happy with one of those too, but I invested in a 3D setup so I am kind of stuck in Nvidia land for now.

    As far as I can see, all of the high end cards are really nice, decide which one is for you and be happy, don't feel like you need to justify your purchase to unknown people on the internet.
  • will54 - Thursday, May 10, 2012 - link

    Finally someone that doesn't put down one brand over the other just to justifiy his purchase. In the end these cards are plenty enough for most resolutions and games. If 3d and physx and such is something important to you go Nvidia and if Compute and zero core tech is important go AMD. The fact that both companies are strong only improves the product and price.
  • CeriseCogburn - Friday, May 11, 2012 - link

    you won't be using 7970 and 7950 for compute, those cards are thousands of dollars and have special configs and special drivers, and don't even carry the same card name, although the cores are similar

    Way over 2 grand baby. That strikes down the one lie for amd, no points amd fan.
    Onto the second talking point - zero core - it shows about 3 watts difference at idle, but once a person uses the card, the 7970 loses hours of advantage doing nothing in a few minutes, hence it's power bill cost will be much more anyway. That's another zero points for amd.

    I'll wait till you think of something that isn't a big fat lie and trick to claim the amd cards are "good too"....

    If you're going to be a good fair and peaceful person willing to bring together the forum you had better come up with something solid for amd.

    We don't get to just say it's all even steven because amd loses so miserably, and then pretend it's true, while (you) spewing an outright lie and deception (firepro) and a secondary loss as a win (power).
  • SlyNine - Saturday, May 12, 2012 - link

    There are plenty of people using consumer grade cards for compute.
  • CeriseCogburn - Sunday, May 13, 2012 - link

    Sure, plenty, plenty, plenty here never use it, and now they have one thing they can use it for with an amd card - winzip-

    Count your many blessings amd fan.

    What a joke you people are.
    There are nVidia driver hacks available BTW - whereby you can increase perf of the many released nVidia gaming cards and attempt some grand performance, but of course you guys have done that already for the past 3 generations like your opposition here, huh....

    Yes, you're so well versed.
  • Galidou - Sunday, May 13, 2012 - link

    And here comes the fanboy to break the dream of neutrality, we will never be alone. We just said we were happy that someone commented about whatever brand people buy, as long as you are happy with your purchase.

    ''Perception is what matters, someone who buys a honda civic can be as happy as someone who buys a Ferrari, sure the feeling of driving it will be different. But in the end, it's the perception towards life that matters.
  • CeriseCogburn - Sunday, May 13, 2012 - link

    Someone who had to buy Nvidia for the 3D, since amd sucks so badly at it, owned nVidia (285) prior, and thus, essentially has zero amd experience.

    Yes, be happy, ignorance is bliss, in even the face of epic fail (no amd 3D use worth crap).

    I mean is that what you want, someone kissing your inner feeling child so the lie you live can remain ?

    It seems so.
  • CeriseCogburn - Friday, May 11, 2012 - link

    I see SlyNine.... so the jump from your 5870 to the next tier, the 6970 was crap, and then to 7970 was crap, only becoming relevant when the 680GTX hit:

    " My 5870 was 2 1/2 years old, cost me 384$ at the time, The price/performance stayed relevant right until the 680GTX came out. "

    So according to you, the last 2 amd flagship releases even combined were not of sufficient jump percentage...

    I guess that's another giant mark in the destruction of the recently popularized complaint about this release "being the smallest jump we've ever seen".

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