there is no NV47, but G70 is on the way

[Megadrive1988]

Has there been any information on why nvidia changed from nv code names to G code names ?

not that I've seen.

I know this doesnt answer your question exactly, but Inquirer had this to say on June 15th

http://theinquirer.net/?article=23951

G70, Geforce 7800 GTX final specs out

302 million transistors, eight vertex shaders

By Fuad Abazovic: Wednesday 15 June 2005, 09:49
WE MANAGED to get the final remaining details about the soon to be launched Geforce 7800 GTX. We revealed most of it already, but here we go again.

The chip is made using a 110 nanometre process and will have 302 million transistors. So far, this is the biggest chip ever built for graphics use. As we revealed before, the chip will be clocked at 430MHz and will use 1200MHz memory with a 256 bit GDRR3 interface.

It will have eight vertex shader units and will be able to process 24 pixels per clock. Nvidia claims that it has 24 pipelines. Some senior editors are referring to this chip as NV47 as it's nothing more than the NV47 was supposed to be, an NV40 with more pipelines and two more vertex shaders.

The peak fill rate of the card is 6.88 Billion/second (16 ROPs at 430 MHz). Bilinear-filtered texel fill rate is 10.32 billion/second when all 24 pipelines work at the full 430MHz.

The peak power consumption of the chip is 100 to 110W, all the information and benchmarks of the Geforce 7800 Ultra or two cards under SLI will be revealed at six in the morning European time, on the 22nd of June. µ

so according to Inquirier (they do manage to get SOME things right) the G70 is the Nv47 as most people have obviously linked together as being the same thing.

 

[trinibwoy]

so according to Inquirier (they do manage to get SOME things right) the G70 is the Nv47 as most people have obviously linked together as being the same thing.

But wouldn't that mean that RSX is also based on NV47 ?

 

[neliz]

so according to Inquirier (they do manage to get SOME things right) the G70 is the Nv47 as most people have obviously linked together as being the same thing.

But wouldn't that mean that RSX is also based on NV47 ?

Either the G70 or G80, with the time it takes to develop the PS3, I think it will be based on the G80, so a dual core GPU yes..

And, for those that are just to ignorant, referring to a chipset's code number, when it starts with C, it doesn't automagically mean it's nvidia..

 

[trinibwoy]

Either the G70 or G80, with the time it takes to develop the PS3, I think it will be based on the G80, so a dual core GPU yes..

Well IIRC Nvidia themselves have said that RSX is pretty much just a customized G70. And as I've wondered before, if RSX has been in development for several years as Nvidia also stated, then that doesn't reconcile with G70 = NV47 = NV40 refresh. Oh well, less than a week to go.

And where are you getting this G80 = dual-core G70 from?

 

[neliz]

Either the G70 or G80, with the time it takes to develop the PS3, I think it will be based on the G80, so a dual core GPU yes..

Well IIRC Nvidia themselves have said that RSX is pretty much just a customized G70. And as I've wondered before, if RSX has been in development for several years as Nvidia also stated, then that doesn't reconcile with G70 = NV47 = NV40 refresh. Oh well, less than a week to go.

And where are you getting this G80 = dual-core G70 from?

g70=nv47

Well, the G70Ultra is supposed to have 2x256bit memory bus, right?
Now what would that imply? I think it's a child of "sli2" where two processors are able to share the same graphics memory, unlike current amr or sli setups.

This would open the doors to the long rumoured dual processors GPU's

 

[trinibwoy]

Well, the G70Ultra is supposed to have 2x256bit memory bus, right? Now what would that imply? I think it's a child of "sli2" where two processors are able to share the same graphics memory, unlike current amr or sli setups.

Source?

 

[_xxx_]

Well, according to 3dcenter, G70 = NV48, and NV47 died quite a while ago.

 

[trinibwoy]

Well, according to 3dcenter, G70 = NV48, and NV47 died quite a while ago.

So RSX=G70=NV48=NV40 refresh ? Whatever happened to the NV50?! Or is NV50=G80 now? And yes I know Dave is probably laughing at me wallowing in my ignorance

 

[neliz]

Well, the G70Ultra is supposed to have 2x256bit memory bus, right? Now what would that imply? I think it's a child of "sli2" where two processors are able to share the same graphics memory, unlike current amr or sli setups.

Source?

This guy Solid Snake, who also gave us the pictures of digit-life and (like fuad) has friends under nda...

http://www.nvnews.net/vbulletin/showthread.php?t=52064&page=2&pp=15

 

[trinibwoy]

This guy Solid Snake, who also gave us the pictures of digit-life and (like fuad) has friends under nda...

http://www.nvnews.net/vbulletin/showthread.php?t=52064&page=2&pp=15

That's funny . Seriously though, where's your source?

 

[neliz]

That's funny . Seriously though, where's your source?

(and suddenly everyone is really silent...)

He's the new hellbinder y'know..

And this page in the overclockers forum als o hints at it:

http://forums.overclockers.co.uk/showthread.php?t=17424722&page=8&pp=30

 

[Rys]

And this page in the overclockers forum als o hints at it:

http://forums.overclockers.co.uk/showthread.php?t=17424722&page=8&pp=30

It doesn't really

 

[neliz]

Some people get the hint from an inquirer piece that is posted there:

The peak power consumption of the chip is 100 to 110W, all the information and benchmarks of the Geforce 7800 Ultra or two cards under SLI will be revealed at six in the morning European time, on the 22nd of June. µ

 

[digitalwanderer]

Stop it, y'all are killing me!

Is this officially the height of silly season or is this just the height of nVidia silly season and after next Tuesday it'll be ATi's turn?

(Hmmm, seems we'll be needing some serious FUD from ATi next....)

 

[neliz]

Over at Atari, I'm only there to make people laugh..

So dw, what are your thoughts about the ultra then? (no sane talk at r3d)
I expect them to do something different than up the clock 50mhz (that wouldn't require a big ass cooler)

 

[digitalwanderer]

To be honest? I don't have any thoughts on it yet, I'm still just waiting for Tuesday to see what the nV50 really is.

I expect it'll just be a binned & bumped nV50 with some faster memory (if the 1200Mhz memory rumors are true), I don't expect any 90nm nV50s this year.

 

[Geo]

Looks to me they left ~20% in their pocket for an ultra. Evidence: 1200 memory (instead of 1400), single-slot cooler, and two data points pointing at good overclockability of the core with single-slot cooling (an overclock to 500, and Wavey's hint he's seeing better than that).

Conclusive? Heck, no. But it's shaping up that way so far.

What criteria will they use to decide whether to reach into their pocket and get it? I dunno. Could be a mind-fuck. Scare ATI into upclocking a bit more, eating into their yields, availability, and profit margin --then walk away whistling never having reached for that Ultra.

 

[DegustatoR]

Simple explanation is that all NV4x+G7x chips together would number in more than 10 units so NV couldn't name all NV4x chips as NV4x because it ran out of numbers. So G7x was "invented". So G8x is probably what would be NV5x.

 

[nAo]

G70 is not a NV40 with more pipelines, there's more than that.

 

[KimB]

I do wonder how much more, though. One would hope for MSAA in conjunction with FP16 render targets, but I don't know what else we could realistically hope for.