Gefore 8900 and 8950GX2 Rumours

maverik-sg1

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The Inquirer reports

JUST A DAY
after we uncovered the existence of Nvidia's Geforce 8950 GTX and Geforce 8900 GTX, our friends in Taiwan confirmed the news. You can read our original stories here and here.

The Geforce 8950 GX2 is a dual-chip card based on a new 80 nanometre G80 chip, probably codenamed something else. Both GX2 GPUs are clocked at 550MHz and the difference is GDDR4.

The card comes with 2x512MB of 256-bit GDDR4 memory clocked at 2000MHz. The card has 96 Shaders, per chip. It will be priced at $600.

The second in Nvidia's spring line-up is the Geforce 8900 GTX clocked at 700MHz GPU and 2200MHz memory. The chip still has a 384-bit memory interface and comes with 768MB of memory. The card uses a new 80 nanometre chip and has 128 Shaders. Compared to the Radeon X2800XTX it will end up shorter on clock and memory interface. You can compare them here.

The Geforce 8900 GTX is priced at $550.

Meanwhile, the Geforce 8900 GTS is a new card clocked at 600MHz GPU with 2000MHz GDDR4 memory. It supports the 320-bit memory controller and comes with 640Mb of memory. This card should cost $500 and it is using the 80 nanometre chip. This card will still have 128 Shader units.

The current king of the crop, the 8800 GTX will drop in price to $450, while the Geforce 8800 GTS loaded with 640MB of memory stays up in the $400 price range.

Nvidia has two more 80 nanometre cards. The Geforce 8900GT with 600MHz core and with a 256-bit memory interface comes with 512MB of 1800MHz GDDR3 memory. It has 96 Shaders and is built on a 80 nanometre process and will cost $400.

The 8900 GS will be the cheapest G80-based card. The 80 nanometre based beast is clocked at 550MHz core and 1600MHZ memory. The card has the 256-bit memory controller and comes with 256 or 512MB of GDDR3 memory. It also has 96 Shaders. The 256MB version will cost $200 while 512MB incarnation will end up at around the $250 price mark.

The apparently-leaked document mentions G84 and G86 chips but we have some details to confirm. The original story with document is here. µ

Mav's Comments:

This is no doubt a direct combat tool for the R600 - look at the 'proposed' clocks and DDR4 memory. Some will say that Nvidia are worried enough that ATI have a fast card that the need to switch ram is essential - More likely that DDR4 is the same price as highest end DDR3, bonus for us could be that DDR4 has more OC Room.

The 8950GX2 - Well given the heat and power suckage of the 90nm 8800 chip I am more than sceptical that this will be a 'must have card' purely as the cooling required will still be mammoth. Although I love my 7950 GX2 as it gives me the flexibility to choose whichever board I like (no need for sli or crossfire boards) I sincerely hope this turns out to be volt moddable, cost effective and fast.

In fact should the 8950GX2 come with suitable cooling it probably ticks all the right boxes - DX10, not as CPU limited as 8800GTX SLI, uber fast and will scale nicely with the new 45nm CPU's.

The 8900GS looks like a great mid-high end card also.

Like any of these interim updates, there is not enough for current G80 owners to upgrade but for those who have yet to take that leap, if the above rumours are true, then there is a lot of good things to consider for your next uograde.

For me of course it will probably be (if it is released) 8950GX2, that being the case I will have to wait for waterblocks to be introduced and of course volt mods are obligatory!! This will be the catalyst required to dust down the phase cooler (to get me 4.4ghz on the old conroe), the 3x250GB RAID set-up and bust out a weeks worth of benchies.
 
My main problem with the GX2 theory is real possibility of complete saturation of a PCI-E x16 slot. The die shrink will help power draw, but assuming its still a desktop GPU core (unlike the 7950GX2 cores) the power draw of the card could easily pass 400W once overclocked.

Also probs need a spacer kit to get waterblocks in.

Depending on a lot of factors, I would like to jump in the die shrink cards...1GHz core becomes a real possibility under something as simple as Dice, but the wonderful UK pricing system will play a fair part in the realistic desire.
 
8950GX2 in SLI, now that is going to need its own power supply!

"will scale nicely with the new 45nm CPU's" - well that kinda depends on when they are coming, i have seen reports of intel pushing for the second half of this year, but also given that they have to build the fabs some reports say there will be limited quantities of 45nm chips this year.

G
 
Specifc 8950GX2

name='K404' said:
My main problem with the GX2 theory is real possibility of complete saturation of a PCI-E x16 slot. The die shrink will help power draw, but assuming its still a desktop GPU core (unlike the 7950GX2 cores) the power draw of the card could easily pass 400W once overclocked.

Also probs need a spacer kit to get waterblocks in.

Depending on a lot of factors, I would like to jump in the die shrink cards...1GHz core becomes a real possibility under something as simple as Dice, but the wonderful UK pricing system will play a fair part in the realistic desire.

I guess we really need to see for certain.

Consider this though (and pls dont confuse the 7950GX with the very long 7900GX2) that the 7950GX2 is as long or shorter that the current 8800 series gpu's so wherever that fits the 7950GX2 also fits, ergo if the 8800series fits a desktop system......

For power, most of the watts will come from the 12v PCI-E connector and could easiliy be split into two - I consider 400w a stretch, the current 8800GTX pulls 175w loaded - if we consdier the rumour of GDDR4 (and only 512MB of it per GPU) and 80nm die shrinkage then I would say that the draw could be 350w loaded.

I am not convinced that we need 16x PCI-E for current G80 single chip cards - in fact I'd love to see comaprable real life benchmarks comparing a G80 on a 8x and 16x set-up.

Its the old con of 4x agp versus 8xagp when the Ti4600 came out, imho of course.

I don't need spacers for my current watercooling on the 7950GX2 - I dont see that changing foir the new one - I would urge nvidia to consider more space as standard if possible though. If it can be air cooled in its releasse design surely waterblocks can be used?
 
name='maverik-sg1' said:
Consider this though (and pls dont confuse the 7950GX with the very long 7900GX2) that the 7950GX2 is as long or shorter that the current 8800 series gpu's so wherever that fits the 7950GX2 also fits, ergo if the 8800series fits a desktop system......

True, but my comment in regard to the 7950GX2 was was about the cores being mobile chips with a few extra power-saving features and tweaks to make them suitable for their purposes. As far as I know, there was more to it than a clockspeed and core voltage cut

name='maverik-sg1' said:
For power, most of the watts will come from the 12v PCI-E connector and could easiliy be split into two - I consider 400w a stretch, the current 8800GTX pulls 175w loaded - if we consdier the rumour of GDDR4 (and only 512MB of it per GPU) and 80nm die shrinkage then I would say that the draw could be 350w loaded.

Just googled what you said...I take it back. Yea, power draw is <<200W by the looks, so maybe 300W (OC 8950GX2) looks reasonable...not as deadly

name='maverik-sg1' said:
I don't need spacers for my current watercooling on the 7950GX2 - I dont see that changing foir the new one - I would urge nvidia to consider more space as standard if possible though. If it can be air cooled in its releasse design surely waterblocks can be used?

Is the current spacing suitable for the specially-made blocks, or is the spacing wide enough for Maze blocks et al? Many people (myself included) wont throw £80-£100 at a non-transferrable block
 
name='K404' said:
Is the current spacing suitable for the specially-made blocks, or is the spacing wide enough for Maze blocks et al? Many people (myself included) wont throw £80-£100 at a non-transferrable block

Thats why I said that I hope nvida give us a lil more space - otherwise it will be standalone blocks - although if you have the cash for one of these the extra dfor dedicated blocks might not be an issue.

Also consider that it has it own PCI-E bridge chipset that requires cooling so standalone blocks for this product is recommended - also consider that for gaming, this set-up should provide longevity.

Mav
 
yup, been finding more and more that multi card blocks and ramsinks simply dont cope as well as a full gpu dedicated block.... means I bought an 8800gts instead of a gtx tho, as i had to account for the extra £££ for a block :/
 
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