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Gigabyte GTX 670 OC Version *HANDS ON* - Page 57

post #561 of 1506
Thread Starter 
Quote:
Originally Posted by brettjv View Post

Interesting observation there Martyr.
I wonder if the amount of boost is determined by some algorithm that takes current conditions into account, or if it's just set in stone like you will ALWAYS get the 170 or 220 boost no matter what? Further, I wonder if it's hard-coded at the chip level when they make it, or if the amount of boost is somewhere in the bios?
I guess it doesn't matter that much if it's just a flat number that gets added to your OC, though ... since the OC itself isn't capped out. IOW, one can accomplish the same clocks with a 170 boost as one could with a 220 boost, just by OC'ing an extra 50MHz ... I'm correct on this, aren't I? I don't have a Kepler so I'm just trying to put 2+2 together here thumb.gif

I don't think the boost clock is dynamic. Oridin's clocked 50 lower when running SLI in my machine. It seems it's preset.
Yes I'm leaning towards it not mattering much and the total limitation for OC potential is merely your max core clock.

But having said that, it would matter for things like a review on toms, etc. If they have a 220 boosting card for their 'stock test' run, up against a low clock 680, it may beat it in some tests, causing quite a stir, where a 170 boosting card may not.
Quote:
Do people really care about this? I mean seriously....people are arguing over a couple points here and there, and a 50 to 70 dollar difference.

It's moderately trivial. At this point it's mainly about providing information for people looking to upgrade their GPU.
But yeah, I'm still intrigued to see the full range of variation with this card on release day.
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post #562 of 1506
Thread Starter 
TT posted a preview of an OC'd reference 670:
http://www.tweaktown.com/articles/4715/nvidia_geforce_gtx_670_2gb_video_card_overclocked_performance_preview/index1.html

They dropped a hint at Gigabyte 670 OC review on the 10th:
Quote:
Keep an eye out on May 10th when the model officially gets released by NVIDIA and we bring you a look at a non-reference video card that will hopefully impress us like the reference design video card we've looked at here today.
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post #563 of 1506
My Asus 680 arrived today.

Here is the 3DMark run at completely stock speeds, for comparison to the 670:

9962 GPU score.

z0qwv.jpg



And overclocked: 1260MHz max boost, 11470 GPU score. I think it can still OC a bit higher, will try later tonight.

dBtLF.jpg
Edited by 996gt2 - 5/8/12 at 4:15pm
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post #564 of 1506
Quote:
Originally Posted by Majin SSJ Eric View Post

I'm not sure why some people keep saying GK110 will be a Tesla/Quadro-only card? If the 680 was originally supposed to be the 670 then they had to have been planning for something to be the new 680, which obviously must have been GK110. I'm sure we'll see a GK110 GeForce card probably with the compute stuff nerfed....

This is why I think there is more evidence to show that the GTX680 was meant to be a 660ti and the 670 was the 660. Which is why we see such little difference between them! thumb.gif
Which means that the 660ti will be a 650ti. - If my theory is correct!
 
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post #565 of 1506
Quote:
Originally Posted by Matt-Matt View Post

This is why I think there is more evidence to show that the GTX680 was meant to be a 660ti and the 670 was the 660. Which is why we see such little difference between them! thumb.gif

Now this theory makes some sense, as there's definitely historical precedence for something similar (i.e. the Gx1x4 chips being used at the x60 card tier ... see the 460/560 in Fermi). However, that's really not 'why' we see so little difference. The 'why' is simply that the two cards are identical aside from 14% more CUDA cores on the GTX680. All the previous 2nd tier cards had gimped memory subsystems (less ROP's, less bus width, less vram) as well as fewer cores.

If anything, the 'why' ... is that nV has copied AMD's strategy for the 2nd tier card ... one that AMD have used for all three DX11 card generations (5850/6950/7950). In all cases, the 2nd tier card is the same architecturally as it's big brother, aside from a disabled cluster.

I think it's fairly obvious that unfortunately nV weren't able to get GK100 (which would've been our 670/680 chip in this first Kepler generation) working in time, and they discovered that the GK104 at high enough clocks was sufficient to challenge AMD 79xx-series anyways, so they converted GK104 to the top-tier chip. That much is pretty much 'known' at this point, actually.

But the espoused notion (elsewhere on the thread) here that 'GK110 was supposed to be the 680 and GK104 was supposed to be the 670' makes no sense to me as a theory.

GK110 should be the next generation top-end chip, i.e. GTX770/780 (just as GF110 was the 2nd gen i.e. 570/580 in Fermi). However I'd not be surprised if it wasn't out as Tesla product first thumb.gif
Edited by brettjv - 5/8/12 at 7:23pm
    
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post #566 of 1506
MSI 670 reference card is available on tiger diret. Reasonable price and says in stock for shipping.
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post #567 of 1506
Quote:
Originally Posted by Crizume View Post

MSI 670 reference card is available on tiger diret. Reasonable price and says in stock for shipping.

That's one damn ugly card.
     
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post #568 of 1506
Quote:
Originally Posted by Crizume View Post

MSI 670 reference card is available on tiger diret. Reasonable price and says in stock for shipping.

Yeah it looks like nvidia spend all of it's aesthetics budget on the 690.
post #569 of 1506
Quote:
Originally Posted by Crizume View Post

MSI 670 reference card is available on tiger diret. Reasonable price and says in stock for shipping.

Here's a link if anyone cares:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2555843&CatId=2306
post #570 of 1506
Wow it really is $400, well $409. I need some official reviews with the reference card.
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