RV790 Reaches 1.00 GHz, Indicates Overclocked SKUs in the Making

[laszlo]

Yeah that kinda gives it away as a new chip. But hey time will tell. However you wanna bet newtekie1?

even if the die is larger this "new" chip has a father-770;since the lauch of it amd like nvidia has learned what can be improved an voila the result

 

[TheMailMan78]

For all intensive purposes its a new chip.

 

[Valdez]

Nothing new in this, this happened before with r300. R300 (r9700) became r350(r9800pro), after that r360(r9800xt). They were basically the same gpus, only the clocks were different.

 

[$ReaPeR$]

how can you argue on if this chip is or isnt an rv 770 since we do not know thw technical specs in detail?!!!! we do not know anything yet for this chip lets just wait and then argue on it.

 

[newtekie1]

The rv790's die size is also bigger than the rv770's

Where did you find the die size specs? I haven't seen any evidence of a die size increase.

it takes AMD 1ghz to do what it takes nvidia 650mhz to do.

I understand there's differences in architecture, but doesn't a chip using a higher frequency need more voltage? And less voltage for more performance is where we want to go, not more voltage for equal amount of performance...

Still though, as always, amd will need to offer these cards at a killer price to compete with nvidia. Also, they aren't using havok in their drivers just yet. These preliminary tests show promise.

With ATi the core and shaders run at the same speed, with nVidia they don't. nVidia's shaders are way over 1GHz, and the shaders are the work horses.

Yeah that kinda gives it away as a new chip. But hey time will tell. However you wanna bet newtekie1?

Is the die size bigger? I haven't seen anything stating this.

For all intensive purposes its a new chip.

If you say so...We'll just have to wait for the cards to actually come out and for W1z to do a review on them.

 

[AltecV1]

Quote:
Originally Posted by iStink View Post
it takes AMD 1ghz to do what it takes nvidia 650mhz to do.

I understand there's differences in architecture, but doesn't a chip using a higher frequency need more voltage? And less voltage for more performance is where we want to go, not more voltage for equal amount of performance...

Still though, as always, amd will need to offer these cards at a killer price to compete with nvidia. Also, they aren't using havok in their drivers just yet. These preliminary tests show promise.
With ATi the core and shaders run at the same speed, with nVidia they don't. nVidia's shaders are way over 1GHz, and the shaders are the work horses.

your 100% right

 

[btarunr]

How do you know? Have you seen the chip?

Yes

It has been confirmed that the new chip has a larger die. That's probably to minimize inter-component leakages.

 

[iStink]

With ATi the core and shaders run at the same speed, with nVidia they don't. nVidia's shaders are way over 1GHz, and the shaders are the work horses.

Which requires more voltage though? I mean, does it pretty much even out between the two or would it make more sense to save voltage on the gpu and redirect a portion of it to the shaders.

 

[PCpraiser100]

1GHz works for me

 

[newtekie1]

Which requires more voltage though? I mean, does it pretty much even out between the two or would it make more sense to save voltage on the gpu and redirect a portion of it to the shaders.

The whole core gets the same amount of voltage as far as I am aware, though it is possible that more voltage is being directed towards the shaders than the rest of the GPU.

 

[Steevo]

All I have seen in this thread, is
ATI fanbois running rampant like a all girl sleepover on redbull, and Nvidia fanbois proclaiming that the new chip is junk and will never be as precious as their rebadged hardware.

 

[erocker]

All I have seen in this thread, is
ATI fanbois running rampant like a all girl sleepover on redbull, and Nvidia fanbois proclaiming that the new chip is junk and will never be as precious as their rebadged hardware.

It's happened before and will happen again and again and again and again....

 

[sneekypeet]

IDK im a bit of an Nvidia fanboy since I got my 280, but still a 1GHz core clock is just a mark that gives any user a but of a chub. Congrats IMHO to ATI/AMD for breaking the barrier with it on a retail level!

 

[iStink]

All I have seen in this thread, is
ATI fanbois running rampant like a all girl sleepover on redbull, and Nvidia fanbois proclaiming that the new chip is junk and will never be as precious as their rebadged hardware.

PICK A SIDE OR GTFO!

i kid of course

 

[TheMailMan78]

All I have seen in this thread, is
ATI fanbois running rampant like a all girl sleepover on redbull, and Nvidia fanbois proclaiming that the new chip is junk and will never be as precious as their rebadged hardware.

ATI FTW! Nvidia SUXOR! Fanbois unite!

 

[ShadowFold]

I call Pidge

 

[MrMilli]

How do you know? Have you seen the chip? Have you seen any real tech specs on it? What changes have been done? Do we even know a transistor count?

All we are going on is AMD naming it RV790, that is really the only thing that tells use it is a new chip. I'm just saying, I don't think it is any different from RV770. I believe RV790 is nothing more than a binned RV770, and the PCB has been beefed up to allow higher more stable voltage, leading to higher clocks. There have been no changes to the core itself.

RV790 is built on a new process (55GT). That alone makes it a new chip.

The whole core gets the same amount of voltage as far as I am aware, though it is possible that more voltage is being directed towards the shaders than the rest of the GPU.

R6xx/R7xx generation chips use multiple clock/voltage domains (even thought the rops & shaders run on the same clock).


Like btarunr mentioned, the rv790 will be bigger probably to minimize inter-component leakages and it will be built on a better 55mn process. The PCB will have better power circuitry too.
So even if the main voltage increases, that doesn't have to translate into a higher TDP or heat output at 850Mhz. That is, if they can drastically decrease leakage (which seems to be true).

 

[Selene]

Nvidia needs to can the whole GTX275 Idea, we dont need another card, thats lower then the GTX280/285.
bring on the GT212 dang it!

 

[wolf]

For all intensive purposes its a new chip.

for all intensive purposes its a modified RV770, call it whatever you like its an RV770 made to run faster, whatever that entails great.

your saying its a different chip solely because the die size is different (all we know so far, AT A GLANCE)

what we actually know so far is it performs exactly as an equally clocked 4870 does, its a faster running RV770.

 

[InnocentCriminal]

... but wouldn't it be incorrect to call it a RV770 when it's a RV790?

 

[wolf]

... but wouldn't it be incorrect to call it a RV770 when it's a RV790?

yes its RV790, that's what they have decided to call the chip. this is all so speculative anyway, i cant wait till W1z gets his hands on it and facts become facts. I am very confident of what the results will be.

 

[InnocentCriminal]

Yeah, I'm looking forward to it as well.

 

[Steevo]

To throw in, at least this isn't just rebadged 3870 making the rounds with a different cooler and MOAR STICKARZ!!!!!

 

[DrPepper]

Crap I was hoping this was a bad chip so my card wouldn't be worth less monies

 

[btarunr]

your saying its a different chip solely because the die size is different (all we know so far, AT A GLANCE).

That's not all, it's a new package. Can't you see the package components around the die different? It is a different GPU that happens to share the same specs. as the RV770. By your logic, a GTX 285 is a rebadged GTX 280, and a GTS 250, a rebadged 8800 GTS-512. You're probably going to say "no way! GTX 285/GTS 250 are 55 nm", well? now that's a new package with the same specs, and higher clock speeds, isn't it? Same with this. Both RV770 and RV790 are built on the "55 nm" lithography, though not the same process. RV790 comes on a newer, more advanced process within 55 nm.