Some Geforce FX previews are up!!!

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Tennoh

Member
Jan 30, 2000
116
0
76
Originally posted by: KnightBreed
Originally posted by: GTaudiophile Edit: I'm not too impressed...yet...especially since ATi pulled this rabbit out of their hat 6 months ago...
Correction: 4 months

By the time GeforceFX becomes readily available, it'll be more that 6months. R300 was announced end of July?, released Sept. Personally I'm not that impressed by the FX. Doesn't bring much over the R300 and who knows what ATI has in store from now till Feb 2003. I was hoping nVidia would bring better FSAA techniques, but from what've been reading from Beyond3d.com forums, its the same as GF4. Also the aniso is the same too. Disappointing...

 

AmdInside

Golden Member
Jan 22, 2002
1,355
0
76
Originally posted by: Woodchuck2000
Those screenshots are incredible. It's the first time for at least a year I've looked at a technology demo and simply said "Wow!"
All the screenshots on the THG preview are simply stunning and quite a large jump from the 9700 demos (I'm gonna get flamed for that ;))

I'm sure that both the 9700 and the FX will be able to run any game in the next two years perfectly well. I'm also sure that I'm not gonna be able to afford either card...

Have you seen the benchmark provided by NVIDIA to Anand featuring Doom III? Neither of these cards are getting 60FPS. Ouch.
 
Jun 18, 2000
11,208
775
126
Originally posted by: Tennoh
Originally posted by: KnightBreed
Originally posted by: GTaudiophile Edit: I'm not too impressed...yet...especially since ATi pulled this rabbit out of their hat 6 months ago...
Correction: 4 months

By the time GeforceFX becomes readily available, it'll be more that 6months. R300 was announced end of July?, released Sept. Personally I'm not that impressed by the FX. Doesn't bring much over the R300 and who knows what ATI has in store from now till Feb 2003. I was hoping nVidia would bring better FSAA techniques, but from what've been reading from Beyond3d.com forums, its the same as GF4. Also the aniso is the same too. Disappointing...
More than 6 months? Do yourself a favor and count on your fingers:

September -> October    1 month
October -> November    2 months
November -> December    3 months
December -> January    4 months
January -> February    5 months

 

AmdInside

Golden Member
Jan 22, 2002
1,355
0
76
Originally posted by: KnightBreed
Originally posted by: Tennoh
Originally posted by: KnightBreed
Originally posted by: GTaudiophile Edit: I'm not too impressed...yet...especially since ATi pulled this rabbit out of their hat 6 months ago...
Correction: 4 months

By the time GeforceFX becomes readily available, it'll be more that 6months. R300 was announced end of July?, released Sept. Personally I'm not that impressed by the FX. Doesn't bring much over the R300 and who knows what ATI has in store from now till Feb 2003. I was hoping nVidia would bring better FSAA techniques, but from what've been reading from Beyond3d.com forums, its the same as GF4. Also the aniso is the same too. Disappointing...
More than 6 months? Do yourself a favor and count on your fingers:

September -> October    1 month
October -> November    2 months
November -> December    3 months
December -> January    4 months
January -> February    5 months

Actually, closer to 4 months. The Radeon 9700 was very impossible to find in late September. People couldn't really find it until October. Just like we will see a few cards in January but mass quantities won't be available until Feb.
 

BFG10K

Lifer
Aug 14, 2000
22,709
3,003
126
It looks like nVidia has gone the same route as ATi by providing an 8 x 1 architecture but what's even more surprising is the 128 bit memory path. Of course the colour compression, which provides lossless 4:1 compression in realtime, could well be the nifty little feature that really boosts the card's perfomance.

Also it's good to see adaptive anisotropic filtering finally arrive on nVidia boards and flight sim/racing fans will definitely like that 8x FSAA which has pretty much previously been only available on the V5 6000.

I for one am very interested in seeing how it performs.
 
Jun 18, 2000
11,208
775
126
Originally posted by: BFG10K
It looks like nVidia has gone the same route as ATi by providing an 8 x 1 architecture but what's even more surprising is the 128 bit memory path. Of course the colour compression, which provides lossless 4:1 compression in realtime, could well be the nifty little feature that really boosts the card's perfomance.

Also it's good to see adaptive anisotropic filtering finally arrive on nVidia boards and flight sim/racing fans will definitely like that 8x FSAA which has pretty much previously been only available on the V5 6000.

I for one am very interested in seeing how it performs.
R300 more or less supports the same compression, but only when FSAA is enabled.
 

ed21x

Diamond Member
Oct 12, 2001
5,411
8
81
whoa... thats one sweet card!

But yeah, i wonder if I can rip off the extra cooling gear from the second pci slot and resume water cooling the card.
 

chizow

Diamond Member
Jun 26, 2001
9,537
2
0
Does anyone know if engineering/reference samples are in reviewers hands atm??? I don't want to read through 100 previews if they are just based on nVidia releases. If this is just a mass spam-fest of nVidia info b/c the NDA was lifted, I'm gonna curb my enthusiasm until we get some real world benchies.

Chiz
 

GTaudiophile

Lifer
Oct 24, 2000
29,767
33
81
Originally posted by: chizow
Does anyone know if engineering/reference samples are in reviewers hands atm??? I don't want to read through 100 previews if they are just based on nVidia releases. If this is just a mass spam-fest of nVidia info b/c the NDA was lifted, I'm gonna curb my enthusiasm until we get some real world benchies.

Chiz

Basically all it was. Anand has had this info since March...
 

FishTankX

Platinum Member
Oct 6, 2001
2,738
0
0
I still don't quite understand Nvidia's bandwidth claim.

16GB/sX4=64GB/s. Could someone knowledgable tell me how 16 X 4 = 48?

From the article on AT.
"The lossless compression algorithm can obtain up to a 4:1 compression ratio which explains where NVIDIA gets their 48GB/s of memory bandwidth from. Remember that the 500MHz DDR2 memory on the GeForce FX provides 16GB/s of bandwidth on the 128-bit memory bus, but multiply that by 4 and you'll get the 48GB/s of memory bandwidth NVIDIA is claiming."
 

Dulanic

Diamond Member
Oct 27, 2000
9,968
592
136
Originally posted by: Tennoh
Originally posted by: KnightBreed
Originally posted by: GTaudiophile Edit: I'm not too impressed...yet...especially since ATi pulled this rabbit out of their hat 6 months ago...
Correction: 4 months

By the time GeforceFX becomes readily available, it'll be more that 6months. R300 was announced end of July?, released Sept. Personally I'm not that impressed by the FX. Doesn't bring much over the R300 and who knows what ATI has in store from now till Feb 2003. I was hoping nVidia would bring better FSAA techniques, but from what've been reading from Beyond3d.com forums, its the same as GF4. Also the aniso is the same too. Disappointing...

I swear to god are people BLIND? These quotes are from anands article...

The end result of this compression engine is that anti-aliasing now becomes a very low cost operation, since very little memory bandwidth is wasted. Essentially the only memory bandwidth used is on the edges of polygons, which make up a much smaller percentage of a scene than everything else. This should sound quite familiar as the results are similar to what Matrox promised (and delivered) with their Fragment Anti-Aliasing technology - only anti-aliasing the edges of polygons - however the difference is that there are no compatibility problems with NVIDIA's approach as it is still conventional multisampled AA.

Same ole FSAA eh?

On the topic of texture filtering, NVIDIA finally offers a non-purists anisotropic (and trilinear) filtering algorithm. This driver selectable option will enable users to choose from an accurate filtering algorithm (similar to what the GeForce4 currently has) or a slightly less accurate but very high performance algorithm (similar to what the Radeon 9700 Pro uses). The end result is that the performance hit incurred when enabling anisotropic filtering or even trilinear filtering when in this "performance" mode is considerably less. NVIDIA claims that their anisotropic filtering algorithm is more precise than ATI's, so the GeForce FX's anisotropic filtering should look just as good if not better than the Radeon 9700 Pro's.

Same ole AF too!
 

FishTankX

Platinum Member
Oct 6, 2001
2,738
0
0
Not same old AF. Same old AF thrown in. Nvidia now has an adaptive algorithm too, which will allow it to compete with the Radeon9700.
 

GTaudiophile

Lifer
Oct 24, 2000
29,767
33
81
Originally posted by: FishTankX
I still don't quite understand Nvidia's bandwidth claim.

16GB/sX4=64GB/s. Could someone knowledgable tell me how 16 X 4 = 48?

From the article on AT.
"The lossless compression algorithm can obtain up to a 4:1 compression ratio which explains where NVIDIA gets their 48GB/s of memory bandwidth from. Remember that the 500MHz DDR2 memory on the GeForce FX provides 16GB/s of bandwidth on the 128-bit memory bus, but multiply that by 4 and you'll get the 48GB/s of memory bandwidth NVIDIA is claiming."

That has to be a typo. We know Anand must have taken some math classes!
 

BFG10K

Lifer
Aug 14, 2000
22,709
3,003
126
R300 more or less supports the same compression, but only when FSAA is enabled.
Obviously but my interest stems around the non-FSAA situations which nVidia's method can handle.

16GB/sX4=64GB/s. Could someone knowledgable tell me how 16 X 4 = 48?
The overhead of the compression method still requires 25% of the data to be stored and transmitted, so you end up really getting 3:1 effective compression.

 

apoppin

Lifer
Mar 9, 2000
34,890
1
0
alienbabeltech.com
Originally posted by: chizow
Does anyone know if engineering/reference samples are in reviewers hands atm??? I don't want to read through 100 previews if they are just based on nVidia releases. If this is just a mass spam-fest of nVidia info b/c the NDA was lifted, I'm gonna curb my enthusiasm until we get some real world benchies.

Chiz
Curb your enthusiasm. ;)

The NV30 samples should be available to reviewers NEXT month (in VERY limited supply).