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Huge Nvidian 8800GT die pictured

How to fill out a 300mm wafer - with DX10.0 G92 chips
Thursday, 25 October 2007, 19:31

WE HAVE TAKEN taken several 8800GT apart and checked for differences between the boards.

There isn't much to be said, other than to note that Nvidia has now marked its chips G92_2x0. This is just like G84 and G86 were marked as different series.

But the shocking thing is the fact that die is massive. This is how 65nm chip looks like when you put some real units inside, not make a chip that 80% is cache, and 20% is logic.

alt='g92_dieshot'Big 128 112 units and a fixed video part...

The this chip is huge, but it is still smaller than a G80, which took most of the FC-BGA packaging, just like R600.

Graphzilla just placed a metal IHS covering complete package, and that is that. The lower-end part (with unexpectedly good performance) comes bare naked, and we can see the difference between die sizes.

When compared to the 8600GTS, this chip is way bigger (and better), and sure will pack the punch for DX10.0 titles.

The PCB itself is *very* similar to GeForce 8800GTS, with only minor modifications made in order to fit the 256-bit memory controller on the board.

The G80 chip comes with 384-bit memory controller, while this cheaper but highly-efficient 256-bit one is more friendly to the amount of video memory. Game devs complained about 768MB quite a lot, and we remember how 1GB XT cards walked all over Ultra in highest resolutions.

This is how the board looks once that single-slot (or dual-slot) cooler is removed:

alt='g92_pcbfront'Looking like 7950GT? You're not all that far off...

As you can see, NVIO1 chip went the way of dodo birds.

alt='g92_nonvio1chippery'Room for additional chippery, but it is left unused this time around.

The board we have is a bare reference design, manufactured by Flextronics (as far as we can guess by the numbers). This was the base for quite a lot of boards, but we'll see who will ship most 8800GT boards in 2007 - Foxconn or Flextronics.

When it comes to rest of the board, this is what you'll be able to buy for $200 something, depending on the size of frame buffer memory. 256 and 1024MB are going to come a little bit later, November-ish. Bear in mind that almost all boards are manufactured by Foxconn and Flextronics.

To translate into plain English: Nvidia will get another record quarter in sales, but this time around - it won't be easy.

Unfortunately, you have a top-performing part, and you're in the lead as far as DX10 user base is considered, analysts love you... and you go and crap on it with presentation containing white elephants.

Graphzilla was talking with white mice, obviously. ยต

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Comments
dx10.zero

Remember the days when DX10.0 was current? Seem ages ago now.

posted by : W.-, 25 October 2007 Complain about this comment
80% is?

But the shocking thing is the fact that die is massive. 

This is how 65nm chip looks like when you put some real units inside, not make a chip that 80% is cache, and 20% is logic.

You fail at grammar.

posted by : Gordon, 25 October 2007 Complain about this comment
Uh...

Since when did the 1GB XT's walk all over the 8800 Ultra's at any res?

posted by : Matt, 26 October 2007 Complain about this comment
nitpick

Not sure I agree with the part about the 1GB XT walking all over the Ultra. I think every site and their uncle proved the 1GB XT was a waste of money, and high resolution or not, the card just doesn't have the fillrates to use the bandwidth or framebuffer size.

512MB GT will be the best of the bunch, for those not naive enough to believe that memory means everything, and a 512MB 8400GS will beat a 8800GTS 320MB any day of the week.

posted by : Reputator, 26 October 2007 Complain about this comment
Double precision?

Nvidia's president was claiming double precision and 1Tflop during his media talk this summer. Is the size of this part because it already contains the double precision stream processors?

posted by : don, 26 October 2007 Complain about this comment
Say what?!

"we remember how 1GB XT cards walked all over Ultra in highest resolutions."

What are you smoking dude? I want some. I want to experience this alternate reality that you live in. 


posted by : Spaceboat, 28 October 2007 Complain about this comment
1GB XT walked all over 8800 Ultra

Grammar failed learn not. Computer translated me think since red team pwn always green team. 1GB XT walked all over 8800 Ultra was bench well known in industry. Graphzilla post lies and paid everyone on web fake benches and hide facts this is well known conspiricy so real tests shows even 1GB HD2600XT eat alive 8800GTX Ultra in most games. Absolute truth from high ranking source.

posted by : Tetsuro, 29 October 2007 Complain about this comment
Alternate reality

is called salvia.

posted by : 8800GT, 02 November 2007 Complain about this comment
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