New NV30 cluelet

[tieros]

The picture of the NV30 on the new page has 1156 pins (balls, actually), plus or minus 100.

Assuming it's not a trick they're playing on us, does it give any clue about the width of the memory bus?

Edit: The NV25 has quite a few less, but I couldn't get an exact count. Somewhere around 800 maybe?

[-=DVS=-]

well maybe becouse nv25 is agp 4x and nv30 is agp 8x :rolleyes:

[tieros]

The R300 has just over 1000 pins as well. Hmmmmm.


I'll go ahead and go out on a limb and guess that the NV30 has a 256-bit memory bus, with 400, 460, and 500 MHz DDR-II speeds available.

I'm going to go hit google and see if I can find a good place to order myself some crow online for later :D

[Spiffster]

Does the number of pins really have something to do with memory bus?

[DadGT]

Originally posted by Spiffster
Does the number of pins really have something to do with memory bus?

Yes. Each separate bit for transfer from memory needs a new pin. Double the memory bus and you need a lot more pins (more than 128 because of various integrety checks).

Of course, we are basing this 256-bit confirmation off a cartoon picture of a chip.

[tieros]

Actually, this was the picture I was using:

http://www.nvidia.com/content/areyouready/images/chip.jpg

Of course, this is all just for fun and to kill time until we get the real info. For all I know, they've used that same JPEG a thousand times before.

[DadGT]

Originally posted by tieros
Actually, this was the picture I was using:

http://www.nvidia.com/content/areyouready/images/chip.jpg

Of course, this is all just for fun and to kill time until we get the real info. For all I know, they've used that same JPEG a thousand times before.

Guess I didn't notice the newer picture. The older ones were pretty cartoonish.

BTW: The AMD Opteron with a dual channel DDR memory controller (2x72 bits) and 2 16-bit HT links has a pin count of 940. The Clawhammer with half the memory width (1x72 bits) and 2 8-bit HT links has a pin count of 754. Assuming all extra pins are due to the increased link widths, to add 86-bits of extra bandwidth it takes 186 pins.

[DrAkO]

Hi Guys!

You think the NV30 have be a 256 bits bus memory ?

nVIDIA didn't say the bus is 128 bits or it's only a rumour ?

[thcdru2k]

right now, the rumor is that its an 128 bit interface.

however, its also said that the nv30 is 256 bit interface, and the nv31, the mx counterpart to the nv30 would be 128 bit and have 4 pipelines instead of 8.

[DrAkO]

Ok! Thx

If the NV30 have a 256 bits interface and DDR-II memory, he really eat the R9700! :D

But, what's the price for a DDR-II memory cards, with 256 bits interface and .13u...

So, the real "enemy" for the NV30 ( if this card have a 256 bits interface ) is the R350, maybe the R400, not the R9700...

So, That will be false to compare the NV30 and R9700 if the nVIDIA card have 256 bits...

But, I wait impatiently on November 18