Tuesday, May 14th 2013

GeForce GTX 680 Can Be Flashed to GTX 770?

No you can't, but read on. When we learned that NVIDIA's upcoming GeForce GTX 770 uses a GPU not unlike the GeForce GTX 680 in specifications, we overlooked one possibility, that it uses the same exact chip, the GK104. We assumed that NVIDIA could release a new ASIC codenamed "GK114" or "GK204," which features higher energy-efficiency, and GPU Boost 2.0.

A Reddit user claims that a simple BIOS flash of the GeForce GTX 680 could turn it into a GeForce GTX 770. The BIOS ROM image, which probably works with reference-design GTX 680 boards was posted, along with a GPU-Z screenshot of a "GeForce GTX 770" obtained this way. The BIOS runs the card at 1059 MHz core, 1125 MHz maximum GPU Boost, and 1752 MHz (7.00 GHz GDDR5-effective) memory, yielding a memory bandwidth of 224 GB/s. The BIOS file can be found here (try it at your own risk). We tested the BIOS with some of our own GTX 680 cards, and found it to be nothing more than a modified GTX 680 BIOS (for increased clocks) with a modified driver INF file that makes the GeForce driver display a different model name. The BIOS just has made-up clock speeds that could run on some GTX 680 cards, but could be unstable on most.

We created four additional GPU-Z screenshots to serve as evidence that just by modifying the INF file, you can make the card appear as anything you want. The string from the INF file is used in Windows for display purposes only; the graphics driver does not use it for anything else; certainly not feature detection.

When your GTX 680 manages to be stable with the new BIOS, the higher clock speeds obviously work to get you that 5-7 percent performance increment. Third-rate companies often get away selling rebranded fake graphics cards in developing markets using this method. For example, they buy cheap GeForce 210 cards and sell them as GT 630 for twice the money. Even between officially rebranded NVIDIA graphics cards (such as GeForce 8800 GT to 9800 GT), the device ID is changed, so there's no reason why NVIDIA won't do the same with the GTX 770. In conclusion, this "GTX 770" mod is nothing more than a combination of a custom GTX 680 BIOS that adds higher clock speeds, and a custom INF file that changes the card's name string.
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84 Comments on GeForce GTX 680 Can Be Flashed to GTX 770?

#1
cdawall
where the hell are my stars
by: HumanSmoke
Meanwhile, AMD pretty much do the exact same thing, and...
Well no that's the same card with a core revision and the same name but higher clocked. Nvidia and amd bith do this all the tine 6770-7700, gts250/9800gtx/9800gtx+/8800gts 512 etc.
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#2
okidna
by: HumanSmoke
Meanwhile, AMD pretty much do the exact same thing, and...
Double standard to the max! :roll:

IMO, CD is a joke, for him everything about NVIDIA is bad, bad, bad, and everything about AMD is good, great, and better.

I bet he doesn't even remember about 6770, 6750, 7670 (OEM), and the whole 8000 OEM series.
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#3
HumanSmoke
by: cdawall
Well no that's the same card with a core revision and the same name but higher clocked. Nvidia and amd bith do this all the tine 6770-7700, gts250/9800gtx/9800gtx+/8800gts 512 etc.
Well, I certainly would have used a straight AMD rebrand (i.e. the HD 5770/5750 to 6770/6750*) example from Charlie D...except that he doesn't actually get around to writing anything about them :rolleyes:
Sometimes a non-article is worth a thousand words.

*I think AMD actually attempted to deflect early criticism by announcing that the cards would be OEM only parts...so much for that.
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#4
cowie
Thanks for shedding some light and facts on this Wizz
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#5
D007
Ok, so there is no point to flashing then right?
I can just OC my 680's from the sound of it.
Flashing will yield no higher performance correct?
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#6
DarkOCean
by: D007
Flashing will yield no higher performance correct?
Only increase in performance will come from the obviously increased clocks so ... just do the oc youself.
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#7
NeoXF
Sooo... that means that GeForce GTX 770 will have higher (actual) TDP than Radeon HD 7970GHz?

MOAR GIGAHURTZZ PL0X!!!
Posted on Reply
#8
Casecutter
by: HumanSmoke
Meanwhile, AMD pretty much do the exact same thing, and...
Ah, that was the speculation like a year ago... can you bring anything more recent? :ohwell:

Back to the GTX680 to 770 flash... It should be do-able and though not any big thing over clocking it yourself. The real big deal would be new Boost algorithm which will probably bring more granularity. And while you might flash to the new clocks and boost setting, on a GTX680 with reference ASIC chip and perhaps not the quality of memory modules all that’s going to happen is the new algorithm will just pull back on clock as it sees heat. Meaning the flash might show you can “attain” such setting, but it depends on the PCB/cooling and quality of the chips on your GTX680 determine how much or how often. The up side is the new Boost algorithm will probably protect a flashed GTX680 better than the dynamic clock profile that came with the first version.

The big downside you fry it after the flash and send it in for warranty they can read the Bios and say so sorry, do you what to pay to have us ship your $450 brick back?
Posted on Reply
#9
W1zzard
by: Casecutter
The up side is the new Boost algorithm will probably protect a flashed GTX680 better than the dynamic clock profile that came with the first version.
This BIOS will not enable the new Boost algorithm
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#10
Casecutter
by: W1zzard
This BIOS will not enable the new Boost algorithm
So then there's not any good reason for trying it... in my mind.
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#11
Hilux SSRG
If these price quotes come to fruition then I don't see prices coming down much or at all for current gtx670 / gtx680 cards.
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#12
DarkOCean
by: Hilux SSRG
If these price quotes come to fruition then I don't see prices coming down much or at all for current gtx670 / gtx680 cards.
course they wont, what do you take Nvidia for a charity company?
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#13
NeoXF
Lame... but wasn't this to be expected, cause like... almost year ago wasn't nVidia all about saying they will be delaying Maxwell and such? Even tho I gotta say, I would've thought that they would at least release proper respins on the current chips... like GK114 or GK120 and such...
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#14
15th Warlock
by: btarunr
GeForce GTX 680 Can Be Flashed to GTX 770?

No it can't...
So... this was fake after all, perhaps the title to this "news" article should be updated, as it's kinda misleading.

Thanks for the update W1zz, chances are the 770 will end up using an updated version of GK104, but for now this is only speculation, I'm glad the TPU gang was able to debunk this hoax, but maybe this kind of articles shouldn't be posted in the front page until further investigation has been made?
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#15
theoneandonlymrk
by: 15th Warlock
So... this was fake after all, perhaps the title to this "news" article should be updated, as it's kinda misleading.

Thanks for the update W1zz, chances are the 770 will end up using an updated version of GK104, but for now this is only speculation, I'm glad the TPU gang was able to debunk this hoax, but maybe this kind of articles shouldn't be posted in the front page until further investigation has been made?
On a quiet day it's not a bad thing to chat about imho :)
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#16
m1dg3t
by: cdawall
Well no that's the same card with a core revision and the same name but higher clocked. Nvidia and amd bith do this all the tine 6770-7700, gts250/9800gtx/9800gtx+/8800gts 512 etc.
The difference with AMD/ATi rebranding though is that they relegate it to the lower spec & mobile cards. Not respinning the mid/top range all the while increasing the price, a la Nvidia.

Plus AMD/ATi drop prices and now include a buttload of games! :pimp:

by: DarkOCean
course they wont, what do you take Nvidia for a charity company?
I'd be happy to see an Nvidia card for sale at "MSRP" :laugh:
Posted on Reply
#17
15th Warlock
by: theoneandonlymrk
On a quiet day it's not a bad thing to chat about imho :)
Agreed a 100% but IMHO the front page should be used for real tech news if you know what I mean, but anyways TPU always does a pretty good job weeding out what makes it to the main page, not in this particular case though :p
Posted on Reply
#18
theoneandonlymrk
by: m1dg3t
The difference with AMD/ATi rebranding though is that they relegate it to the lower spec & mobile cards. Not respinning the mid/top range all the while increasing the price, a la Nvidia.

Plus AMD/ATi drop prices and now include a buttload of games! :pimp:



I'd be happy to see an Nvidia card for sale at "MSRP" :laugh:
I think we're all in agreement it happens on both sides, but tit for tat baiting isn't helping anyone dude, if I started something earlier im sorry imho its important people are aware what gfx cards are and are not respins but not so they don't buy them, just so they buy in an informed and price aware way and don't get ripped off.

And I am only bothered because ive seen it, despite my advice my mate bought a sodding army of 9800 respins but he is a tard.

Oh and I make me chuckle too after some of the debating I've done here.
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#19
m1dg3t
by: theoneandonlymrk
I think we're all in agreement it happens on both sides, but tit for tat baiting isn't helping anyone dude, if I started something earlier im sorry imho its important people are aware what gfx cards are and are not respins but not so they don't buy them, just so they buy in an informed and price aware way and don't get ripped off.

And I am only bothered because ive seen it, despite my advice my mate bought a sodding army of 9800 respins but he is a tard.
Who's baiting? Facts are facts. You mad? :laugh:
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#20
theoneandonlymrk
by: m1dg3t
Who's baiting? Facts are facts. You mad? :laugh:
Possibly, is thT bad ;).
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#22
angryblanket
I don't understand all this non sense over cards that haven't even been announced and are rumors at best :confused:
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#23
erocker
by: angryblanket
I don't understand all this non sense over cards that haven't even been announced and are rumors at best :confused:
Especially since Nvidia has nothing to do with this. :)
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#24
Baum
Apart from the news and speculating thing...

where's the "SLI" lockout device based or device id located if not in the video bios W1zzard?

the driver itself should be moddable too to force some sort of sli-chaotix mode ^^
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#25
OneCool
I want to flash my 7850 to a 770...lets DO IT!!!!:eek:
Posted on Reply
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