NVIDIA Fermi: Architecture discussion

I tried to estimate the cost of a Fermi GPU compared with a Cypress GPU based on the following:

- 40nm process with the same defect rate for both designs (not correct but best guess)
- 334mm² for Cypress, 530mm² for Fermi
- defect rate of 0,001 per mm² (also pur guess), defects evenly spaced, each defect means to scrap a GPU (not correct also, but well its a guess).

And why is Fermi pegged at 530mm2 ? From what's been speculated, it should actually be under 500mm2.
 
The only "info" I've seen about Fermi size is Charlie's claim of 23.x * 23.x.

This time around they are going to lessen the reliance on their boards, hopefully to get partners to differentiate a bit. Partners have been promised silicon in late Feb to start their own designs, so if it launches on Feb 1, you will see differentiated boards about 4-6 weeks later, say April 1.

You sure about that? I read Kyle's post to mean that they're going to keep things closer to home this time around and that AIB's will be stuck with putting stickers on pre-built boards.

As for the nice article, they had some good news, I wrote it up. I actually don't hate them, they just won't stop lying and playing stupid little power games, so it is impossible to get 'good' news officially.

Ok, but what leads you to believe so strongly that A3 will do the trick and/or that clocks will get a boost? According to silent-guy a respin shouldn't impact clocks much. Is it possible that the metal spins also addressed variables that would make the chip play nicer in TSMC's current environment or would that all be at the silicon level too?
 
And why is Fermi pegged at 530mm2 ? From what's been speculated, it should actually be under 500mm2.

GT300 is the same size as GT200, i.e. ~24x24. Any lower (like speculated by some here since before may) is unfounded. Btw, You promised us pics of Fermi back then, still waiting for your sources to show any signs of credibility.

Someone's Twitter said:
The GT300 GPU that taped out last week... 24x24... 4:48 AM Aug 4th from web

GeForce G210 (GT218) and GeForce GT220 (GT216) will launch mid October. 8:32 AM Jun 22nd from web

Ok so there's a lot of misinformation going on right now. GT300 taped out? Oh really? Looks like someone's scared. 4:04 PM May 18th from web
 
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don't have any evidence outside of the conference call stating margins for fermi will remain the same as they are now with the gt200b. Or has there been anything solid on that front?

The only "info" I've seen about Fermi size is Charlie's claim of 23.x * 23.x.

He just answered... neliz has been telling us this for quite a few months already.

Slightly over 700MHz afaik with a ~2.2x ALU:TMU ratio under normal voltage rates. If they hypothetically would raise the voltage slightly a higher hot clock could be possible. It's senseless at this point to speculate on final frequencies until they get A3 done. IMHO they will then decide what the best level of frequencies/voltage will be considering that they want to keep power consumption roughly on GTX285 levels.
Just need a little clarification on your post. The clockspeeds you stated you mentioned them regarding the target clockspeeds, correct? Not the A2 clocks.
Thanks.
 
Are there any real sources though?
Until neliz fails us, I don't see any reason to doubt his info.
Hell, even if he does fail, he has been spot on with the vast majority of info he has passed and would still take his word for it.

Edit- You also don't like Charlie's source in Taiwan?
 
Until neliz fails us, I don't see any reason to doubt his info.
Hell, even if he does fail, he has been spot on with the vast majority of info he has passed and would still take his word for it.

I think you believe him because his predictions are not goot for nVidia. Do you think that GTX380 is a GT212 card? :LOL:

Edit- You also don't like Charlie's source in Taiwan?

His track record behind tape-out dates is really bad. Not a great source...
 
For all we know, GT200 was supposed to be pushing the upper reticle limits already. Nvidia's in a kind of difficult situation right now - they're having problems with margins in the high end for about 1.5 yrs now and they are late to the DX11 game. Plus, they've said, Fermi would be much more modular than previous generations.

I for one could imagine a solution to this.
 
For all we know, GT200 was supposed to be pushing the upper reticle limits already. Nvidia's in a kind of difficult situation right now - they're having problems with margins in the high end for about 1.5 yrs now and they are late to the DX11 game. Plus, they've said, Fermi would be much more modular than previous generations.

I for one could imagine a solution to this.

This is probably more for the 'signs of strain' topic, but do you reckon that the margins in the consumer high end really matter that much to Nvidia? It's a small volume sector, and Nvidia makes no secret of the fact that most of their profit comes from the professional sector - where margins are still pretty strong.
 
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